OCR GCSE 9-1 Gateway Science/Chemistry QUIZ on Topic 1 "PARTICLES"

Which word means the 'smallest particle of a substance'? [8e-1]
1. atom
2. molecule
3. symbol
4. formula
Which word means 'a larger particle formed by bonding together the smallest particles of substances'? [8e-2]
1. atom
2. molecule
3. symbol
4. formula
Which word means the 'shorthand for a chemical element'? [8e-3]
1. atom
2. molecule
3. symbol
4. formula
Which word means 'a summary of the number of atoms of each element in a compound'? [8e-4]
1. atom
2. molecule
3. symbol
4. formula
Which of these is an element? [8e-5]
1. Cu
2. CO
3. MgO
4. H₂O
Which of these is an element? [8e-6]
1. CoO
2. Mg
3. CO₂
4. NaCl
Which of these is an element? [8e-7]
1. CoO
2. MgS
3. O₂
4. NaCl
Which of these is an element? [8e-8]
1. KCl
2. MgS
3. F₂O
4. P₄
Which of these is a compound? [8e-9]
1. CO₂
2. Co
3. F₂
4. P₄
Which of these is a compound? [8e-10]
1. Co
2. MgO
3. F₂
4. P₄
Which of these is a compound? [8e-11]
1. Fe
2. Co
3. CO
4. H₂
Which of these is a compound? [8e-12]
1. Fe
2. Co
3. Ca
4. H₂O
Which of these is an element? [8e-13]
1. nitrogen
2. carbon monoxide
3. water
4. petrol
Which of these is an element? [8e-14]
1. nitrogen monoxide
2. magnesium
3. water
4. alcohol
Which of these is an element? [8e-15]
1. water
2. magnesium oxide
3. bromine
4. alcohol
Which of these is an element? [8e-16]
1. water
2. magnesium oxide
3. brass
4. copper
Which of these is a compound? [8e-17]
1. carbon monoxide
2. magnesium
3. brass
4. bromine
Which of these is a compound? [8e-18]
1. carbon
2. water
3. copper
4. bromine
Which of these is a compound? [8e-19]
1. carbon
2. phosphorus
3. copper oxide
4. bromine
Which of these is a compound? [8e-20]
1. brass (alloy)
2. phosphorus (red)
3. copper (roofing)
4. ethanol (alcohol)
Which of these words means 'one type of atom only'? [8e-21]
1. element
2. compound
3. reactant
4. product
Which word means 'two or more types of atom combined together'? [8e-22]
1. element
2. compound
3. reactant
4. product
Which word means 'what you start with in a chemical reaction'? [8e-23]
1. element
2. compound
3. reactant
4. product
Which word means 'the result of a chemical reaction'? [8e-24]
1. element
2. compound
3. reactant
4. product
Which is the chemical symbol for carbon? [8e-25]
1. C
2. Ca
3. Cr
4. Co
Which is the chemical symbol for calcium? [8e-26]
1. C
2. Ca
3. Cu
4. Co
Which is the chemical symbol for copper? [8e-27]
1. CO
2. Ca
3. Cu
4. Co
Which is the chemical symbol for cobalt? [8e-28]
1. CO
2. Ca
3. Cu
4. Co
Which picture represents a mixture of two compound molecules? [8e-29]
Which picture represents molecules of a pure element? [8e-30]
Which picture represents a mixture of molecules of two elements? [8e-31]
Which picture represents a molecule mixture of two elements and one compound? [8e-32]
Which picture represents a mixture of atoms of an element and molecules of a compound? [8e-33]
Which picture represents atoms of a pure element? [8e-34]
Which picture represents a mixture of atoms of an element and molecules of another element? [8e-35]
Which picture represents molecules of a pure compound? [8e-36]
Which picture represents a mixture of atoms of two elements? [8e-37]
Which picture represents a mixture of molecules of an element and molecules of a compound? [8e-38]
Which picture best represents pure water? [8e-39]
Which picture best represents oxygen dissolved in pure water? [8e-40]
Which is likely to consist of one element? [8e-41]
1. gold ring
2. duralumin hi fi chassis
3. bronze statue
4. pure quartz crystal
Which is likely to consist of one element? [8e-42]
1. duralumin hi fi chassis
2. aluminium pan
3. bronze statue
4. pure quartz crystal
Which is likely to consist of one element? [8e-43]
1. duralumin hi fi chassis
2. bronze statue
3. yellow rock sulfur
4. pure quartz crystal
Which is likely to consist of one element? [8e-44]
1. brass rivet
2. bronze statue
3. pure quartz crystal
4. silver plate
Which statement is TRUE ? [8e-45]
1. most elements are metals
2. most metals are magnetic
3. there are about 1000 different elements in the Periodic Table
4. there are no liquid elements at room temperature and pressure
Which statement is TRUE ? [8e-46]
1. most elements are non-metals
2. most metals are non-magnetic
3. there are about 1000 different elements in the Periodic Table
4. there are no liquid elements at room temperature and pressure
Which statement is TRUE ? [8e-47]
1. most elements are non-metals
2. most metals are magnetic
3. there are about 100 different elements in the Periodic Table
4. there are no liquid elements at room temperature and pressure
Which statement is TRUE ? [8e-48]
1. most elements are non-metals
2. most metals are magnetic
3. there are about 1000 different elements in the Periodic Table
4. there are a few liquid elements at room temperature and pressure
Which element is a liquid metal at room temperature and pressure? [8e-49]
1. mercury
2. bromine
3. phosphorus
4. nickel
Which element is a liquid non-metal at room temperature and pressure? [8e-50]
1. mercury
2. bromine
3. oxygen
4. nickel
Which element of the Periodic Table is a colourless non-metal gas? [8e-51]
1. mercury
2. bromine
3. nitrogen
4. nickel
Which element of the Periodic Table is a solid magnetic metal? [8e-52]
1. mercury
2. bromine
3. sulfur
4. nickel
The product of burning magnesium in air is? [8e-53]
1. magnesium oxide
2. oxygen magneside
3. magnesium hydroxide
4. milk of magnesia
The product of heating an iron-sulfur mixture is called? [8e-54]
1. iron sulfate
2. iron sulfide
3. sulfuric iron
4. sulfide of iron
The product of heating sodium in chlorine is called? [8e-55]
1. sodium chlorate
2. chloro sodium
3. sodium chloride
4. chloric sodiumate
The product of burning hydrogen in air is? [8e-56]
1. oxohydrogen
2. hydrogen peroxide
3. hydrogen hydroxide
4. water
What is formed when carbon burns in excess air? [8e-57]
1. carbon dioxide
2. carbon oxide
3. carbon monoxide
4. oxygen carbonate
What is formed when silvery zinc is heated in green chlorine gas? [8e-58]
1. zinc chlorate
2. zinc chloride
3. chlorozincate
4. chloride of zinc
What is formed after heating a sulfur-copper mixture? [8e-59]
1. copper sulfate
2. sulfonium cuprate
3. copper sulfide
4. sulfate of copper
When copper is heated in a bunsen flame it forms a black solid.
What is the name of the compound formed? [8e-60]
1. copper nitride
2. copper hydroxide
3. copper carbide
4. copper oxide
The formula for sulfuric acid is H₂SO₄.
What is the ratio of H : S : O atoms in the molecule? [8e-61]
1. 2 : 1 : 4
2. 1 : 2 : 4
3. 2 : 4 : 4
4. 2 : 2 : 4
The formula for calcium carbonate is CaCO₃.
What is the ratio of Ca : C : O atoms in the formula? [8e-62]
1. 1 : 3 : 3
2. 1 : 1 : 3
3. 3 : 3 : 1
4. 3 : 1 : 1
The formula for sodium sulfate is Na₂S₂O₃.
What is the ratio of Na : S : O atoms in the formula? [8e-63]
1. 3 : 2 : 2
2. 3 : 3 : 2
3. 2 : 2 : 3
4. 2 : 3 : 3
The formula for copper sulfate is CuSO₄.
What is the ratio of Cu : S : O atoms in the formula? [8e-64]
1. 1 : 4 : 4
2. 4 : 4 : 4
3. 4 : 3 : 4
4. 1 : 1 : 4
Which of the following reactions involves the chemical change ...
two elements ==> compound? [8e-65]
1. zinc + sulfur ==> zinc sulfide
2. oxygen + copper sulfide ==> copper sulfate
3. carbon dioxide + calcium hydroxide ==> calcium carbonate + water
4. water ==> hydrogen + oxygen
Which of the following reactions involves the chemical change ...
element + compound ==> compound? [8e-66]
1. zinc + sulfur ==> zinc sulfide
2. oxygen + copper sulfide ==> copper sulfate
3. carbon dioxide + calcium hydroxide ==> calcium carbonate + water
4. water ==> hydrogen + oxygen
Which of the following reactions involves the chemical change ...
two compounds ==> two compounds? [8e-67]
1. zinc + sulfur ==> zinc sulfide
2. oxygen + copper sulfide ==> copper sulfate
3. carbon dioxide + calcium hydroxide ==> calcium carbonate + water
4. water ==> hydrogen + oxygen
Which of the following reactions involves the chemical change ...
compound ==> two elements? [8e-68]
1. zinc + sulfur ==> zinc sulfide
2. oxygen + copper sulfide ==> copper sulfate
3. carbon dioxide + calcium hydroxide ==> calcium carbonate + water
4. water ==> hydrogen + oxygen
Which of the following is the chemical symbol for the element potassium? [8e-69]
1. K
2. Pt
3. Po
4. P
Which of the following is the chemical symbol for the element nitrogen? [8e-70]
1. No
2. N
3. Ne
4. Ni
Which of the following is the chemical symbol for the element magnesium? [8e-71]
1. Mn
2. Mo
3. Mg
4. Md
Which of the following is the chemical symbol for the element aluminium? [8e-72]
1. Am
2. Ar
3. As
4. Al
Which element is a solid magnetic metal at room temperature? [8e-73]
1. iron
2. sulfur
3. mercury
4. oxygen
Which element is a yellow solid non-metal room temperature? [8e-74]
1. iron
2. sulfur
3. mercury
4. oxygen
Which element is the only liquid metal at room temperature? [8e-75]
1. iron
2. sulfur
3. mercury
4. oxygen
Which element is a colourless gaseous non-metal at room temperature? [8e-76]
1. iron
2. sulfur
3. mercury
4. oxygen
Which element is a green non-metal gas? [8e-77]
1. chlorine
2. aluminium
3. bromine
4. sodium
Which element is a silvery grey solid metal? [8e-78]
1. chlorine
2. aluminium
3. bromine
4. sodium
Which element is a dark red liquid non-metal at room temperature? [8e-79]
1. chlorine
2. aluminium
3. bromine
4. sodium
Which element is a very soft silvery solid metal at room temperature? [8e-80]
1. chlorine
2. aluminium
3. bromine
4. sodium
Which statement is USUALLY TRUE when comparing the physical properties of metallic and non-metallic elements? [8e-81]
1. metals are good conductors of heat
2. metals have low melting and boiling points
3. non-metals are good conductors of electricity
4. non-metals have high densities
Which statement is USUALLY TRUE when comparing the physical properties of metallic and non-metallic elements? [8e-82]
1. metals are poor conductors of heat
2. metals have high melting and boiling points
3. non-metals are good conductors of electricity
4. non-metals have high densities
Which statement is USUALLY TRUE when comparing the physical properties of metallic and non-metallic elements? [8e-83]
1. metals are poor conductors of heat
2. metals have low melting and boiling points
3. non-metals are poor conductors of electricity
4. non-metals have high densities
Which statement is USUALLY TRUE when comparing the physical properties of metallic and non-metallic elements? [8e-84]
1. metals are poor conductors of heat
2. metals have low melting and boiling points
3. non-metals are good conductors of electricity
4. non-metals have low densities
Which statement is USUALLY TRUE when comparing the physical properties of metallic and non-metallic elements? [8e-85]
1. metals are good conductors of electricity
2. metals have low densities
3. non-metals are good conductors of heat
4. non-metals have high melting and boiling points
Which statement is USUALLY TRUE when comparing the physical properties of metallic and non-metallic elements? [8e-86]
1. metals are poor conductors of electricity
2. metals have high densities
3. non-metals are good conductors of heat
4. non-metals have high melting and boiling points
Which statement is USUALLY TRUE about metallic and non-metallic elements? [8e-87]
1. metals are poor conductors of electricity
2. metals have low densities
3. non-metals are poor conductors of heat
4. non-metals have high melting and boiling points
Which statement is USUALLY TRUE about metallic and non-metallic elements? [8e-88]
1. metals are poor conductors of electricity
2. metals have low densities
3. non-metals are good conductors of heat
4. non-metals have low melting and boiling points
Which is the chemical symbol for the element iron? [8e-89]
1. Fe
2. F
3. Ir
4. I
Which is the chemical symbol for the element zinc? [8e-90]
1. ZnO
2. Zn
3. ZnS
4. ZrC
Which is the chemical symbol for the element chlorine? [8e-91]
1. Co
2. Cr
3. Cl
4. Ce
Which is the chemical symbol for the element sodium? [8e-92]
1. S
2. Sm
3. Sn
4. Na
Which statement is TRUE about the Periodic Table of Elements? [8e-93]
1. metals are mostly on the left and in the middle
2. all non-metals are in the middle
3. there are about 1000 different elements
4. about 1/2 of the elements are metals
Which statement is TRUE about the Periodic Table of Elements? [8e-94]
1. metals are mostly in the middle and on the right
2. all non-metals are on the right
3. there are about 500 different elements
4. about 1/4 of the elements are metals
Which statement is TRUE about the Periodic Table of Elements? [8e-95]
1. metals are mostly in the middle and on the right
2. all non-metals are on the left
3. about 1/4 are non-metals
4. about 1/2 of the elements are metals
Which statement is TRUE about the Periodic Table of Elements? [8e-96]
1. metals are mostly in the middle and on the right
2. all non-metals are in the middle
3. there are about 50 different non-metals
4. about 3/4 of the elements are metals
Which statement is TRUE about the elements of the Periodic Table of Elements at room temperature? [8e-97]
1. almost all metals are silvery shiny solids
2. most non-metallic elements are dull solids
3. most metals like aluminium and copper are magnetic
4. it is impossible for a non-metal to be magnetic
Which statement is TRUE about the elements of the Periodic Table of Elements at room temperature? [8e-98]
1. only a few metals like aluminium and silver are silvery shiny solids
2. there are only a few non-metallic elements which are dull solids
3. most metals like aluminium and copper are magnetic
4. it is impossible for a non-metal to be magnetic
Which statement is TRUE about the elements of the Periodic Table of Elements at room temperature? [8e-99]
1. only a few metals like aluminium and silver are silvery shiny solids
2. most non-metallic elements are dull solids
3. a few metals like iron and nickel are magnetic
4. it is impossible for a non-metal to be magnetic
Which statement is TRUE about the elements of the Periodic Table of Elements at room temperature? [8e-100]
1. only a few metals like aluminium and silver are silvery shiny solids
2. most non-metallic elements are dull solids
3. most metals like aluminium and copper are magnetic
4. it is possible for a non-metal to be magnetic
Which of the following statements best describes the arrangement of particles in a gas? [sm-1]
1. Close together and stationary
2. Close together and vibrating
3. Far apart and moving slowly
4. Very far apart and moving quickly
Which of the following statements best describes the arrangement of particles in a solid? [sm-2]
1. Close together and stationary
2. Close together and vibrating
3. Far apart and moving slowly
4. Very far apart and moving quickly
Which of the following statements best describes the arrangement of particles in a liquid? [sm-3]
1. Close together and stationary
2. Far apart and vibrating
3. Close together and moving freely
4. Very far apart and moving quickly
Which of the following best describes what happens to the particles of water when it freezes? [sm-4]
1. They gain energy and break up into atoms of hydrogen and oxygen,
2. They gain energy and gain freedom to move about
3. They lose energy and escape into the atmosphere
4. They lose energy and lose freedom to move about,
Which of the following best describes what happens to the particles of ice when it melts? [sm-5]
1. They gain energy and break up into atoms of hydrogen and oxygen,
2. They gain energy and gain freedom to move about
3. They lose energy and escape into the atmosphere
4. They lose energy and lose freedom to move about,
Which of the following best describes what happens to the particles of water when it boils? [sm-6]
1. They gain kinetic energy and increase their freedom to move without significant attraction
2. They gain energy and gain freedom to move about
3. They lose energy and escape into the atmosphere
4. They lose energy and lose freedom to move about,
Which of the following best describes what happens to the particles of water vapour when it condenses? [sm-7]
1. They gain kinetic energy and increase their freedom to move without significant attraction
2. They gain energy and gain freedom to move about
3. They lose energy and are closer and less free to move around
4. They lose energy and lose freedom to move about,
Which of the following best describes what happens to the particles of water when it evaporates? [sm-8]
1. The higher kinetic energy particles increase their freedom to move without significant attraction
2. They gain energy and gain freedom to move about
3. They lose energy and escape into the atmosphere
4. They lose energy and lose freedom to move about,
The table shows the melting points and boiling points of some substances. Which substance is a solid at 25^oC? [sm-9]

[Substance] Melting Point ^oC and Boiling Point ^oC
1. -39 and 354
2. 119 and 446
3. 15 and 126
4. -127 and -33
The table shows the melting points and boiling points of some substances. Which substance is a liquid at 0^oC? [sm-10]

[Substance] Melting Point ^oC and Boiling Point ^oC
1. -39 and 354
2. 119 and 446
3. 15 and 126
4. -127 and -33
The table shows the melting points and boiling points of some substances. Which substance is a gas at 0^oC? [sm-11]

[Substance] Melting Point ^oC and Boiling Point ^oC
1. -39 and 354
2. 119 and 446
3. 15 and 126
4. -127 and -33
The table shows the melting points and boiling points of some substances. Which substance is a liquid at 30^oC? [sm-12]

[Substance] Melting Point ^oC and Boiling Point ^oC
1. -39 and 10
2. 119 and 446
3. 15 and 126
4. -127 and -33
Air is confined in a glass bottle with a tight screw-top. When the bottle becomes warmer when heated with a hair-dryer, the pressure inside increases because the molecules of air? [sm-13]
1. become bigger
2. become smaller
3. move faster
4. move slower
Air is in a glass bottle with a tight screw-top. When the bottle becomes cooler when placed in a refrigerator, the pressure inside decreases because the molecules of air? [sm-14]
1. become bigger
2. become smaller
3. move faster
4. move slower
When the air in a room becomes warmer a hanging balloon blown up with air becomes bigger because the molecules of air? [sm-15]
1. become bigger
2. become smaller
3. move faster
4. move slower
When the air in a room becomes cooler a hanging balloon blown up with air becomes smaller because the molecules of air? [sm-16]
1. become bigger
2. become smaller
3. move faster
4. move slower
The table shows the melting points and boiling points of some substances. Which substance is a liquid at 20 ^oC? [sm-17]

[Substance] Melting Point ^oC and Boiling Point ^oC
1. -142 and -78
2. -95 and 4
3. -66 and 42
4. 90 and 189
The table shows the melting points and boiling points of some substances. Which substance is a solid at 20^oC? [sm-18]

[Substance] Melting Point ^oC and Boiling Point ^oC
1. -142 and -78
2. -95 and 4
3. -66 and 42
4. 90 and 189
The table shows the melting points and boiling points of some substances. Which substance is a gas at -60^oC? [sm-19]

[Substance] Melting Point ^oC and Boiling Point ^oC
1. -142 and -78
2. -95 and 4
3. -66 and 42
4. 90 and 189
The table shows the melting points and boiling points of some substances. Which substance is a liquid at -10^oC and a gas at 10^oC? [sm-20]

[Substance] Melting Point ^oC and Boiling Point ^oC
1. -142 and -78
2. -95 and 4
3. -66 and 42
4. 90 and 189
Which of the following graphs represents how the temperature of liquid varies as it becomes a solid? [sm-21]
1. graph 1
2. graph 2
3. graph 3
4. graph 4
Which of the following graphs represents how the temperature of gas varies as it becomes a liquid? [sm-22]
1. graph 1
2. graph 2
3. graph 3
4. graph 4
Which of the following graphs represents how the temperature of solid varies as it becomes a liquid? [sm-23]
1. graph 1
2. graph 2
3. graph 3
4. graph 4
Which of the following graphs represents how the temperature of liquid varies as it becomes a gas? [sm-24]
1. graph 1
2. graph 2
3. graph 3
4. graph 4
Which of the following graphs represents how the temperature of gas varies as it eventually becomes a solid? [sm-25]
1. graph 1
2. graph 2
3. graph 3
4. graph 4
Which of the following graphs represents how the temperature of solid varies as it eventually becomes a gas? [sm-26]
1. graph 1
2. graph 2
3. graph 3
4. graph 4
Which of the following is true as a gas is changing to a liquid in condensation? [sm-27]
1. increase in particle order
2. temperature rises
3. particles gain more freedom
4. energy change is endothermic
Which of the following is true as a gas is changing to a liquid in condensation? [sm-28]
1. decrease in particle order
2. temperature rises
3. particles lose freedom
4. energy change is endothermic
Which of the following is true as a gas is changing to a liquid in condensation? [sm-29]
1. decrease in particle order
2. temperature rises
3. particles gain freedom
4. energy change is exothermic
Which of the following is true as a liquid changes to a solid in freezing? [sm-30]
1. increase in particle order
2. temperature falls
3. particles gain freedom
4. energy change is endothermic
Which of the following is true as a liquid changes to a solid in freezing? [sm-31]
1. decrease in particle order
2. temperature stays constant
3. particles gain freedom
4. energy change is endothermic
Which of the following is true as a liquid changes to a solid in freezing? [sm-32]
1. decrease in particle order
2. temperature falls
3. particles lose freedom
4. energy change is endothermic
Which of the following is true as a liquid changes to a solid in freezing? [sm-33]
1. decrease in particle order
2. temperature falls
3. particles gain freedom
4. energy change is exothermic
Which of the following is true as a solid changes to a liquid in melting? [sm-34]
1. decrease in particle order
2. temperature rises
3. particles lose freedom
4. energy change is exothermic
Which of the following is true as a solid changes to a liquid in melting? [sm-35]
1. increase in particle order
2. temperature stays constant
3. particles lose freedom
4. energy change is exothermic
Which of the following is true as a solid changes to a liquid in melting? [sm-36]
1. increase in particle order
2. temperature rises
3. particles gain freedom
4. energy change is exothermic
Which of the following is true as a solid changes to a liquid in melting? [sm-37]
1. increase in particle order
2. temperature rises
3. particles lose freedom
4. energy change is endothermic
Which of the following is true as a liquid changes to a gas in boiling? [sm-38]
1. decrease in particle order
2. temperature rises
3. particles lose freedom
4. energy change is exothermic
Which of the following is true as a liquid changes to a gas in boiling? [sm-39]
1. increase in particle order
2. temperature stays constant
3. particles lose freedom
4. energy change is exothermic
Which of the following is true as a liquid changes to a gas in boiling? [sm-40]
1. increase in particle order
2. temperature rises
3. particles gain freedom
4. energy change is exothermic
Which of the following is true as a liquid changes to a gas in boiling? [sm-41]
1. increase in particle order
2. temperature rises
3. particles lose freedom
4. energy change is endothermic
Which of the following is true as a liquid changes to a gas in evaporation? [sm-42]
1. decrease in particle order
2. temperature stays constant
3. particles lose freedom
4. energy change is exothermic
Which of the following is true as a liquid changes to a gas in evaporation? [sm-43]
1. increase in particle order
2. temperature falls
3. particles lose freedom
4. energy change is exothermic
Which of the following is true as a liquid changes to a gas in evaporation? [sm-44]
1. increase in particle order
2. temperature stays constant
3. particles gain freedom
4. energy change is exothermic
Which of the following is true as a liquid changes to a gas in evaporation? [sm-45]
1. increase in particle order
2. temperature stays constant
3. particles lose freedom
4. energy change is endothermic
When water vapour in a cloud is gradually cooled, rainwater is formed. This change of state is called? [sm-46]
1. condensation
2. distillation
3. evaporation
4. saturation
Heat from the Sun changes water from liquid to a gas. This change of state is called? [sm-47]
1. condensation
2. distillation
3. evaporation
4. saturation
Gases diffuse because they? [sm-48]
1. are made of rapidly moving particles
2. have low boiling points
3. have a low density
4. easily move as convection currents
Liquids and dissolving solids diffuse because they? [sm-49]
1. are made of moving particles
2. have low boiling points
3. have a low density
4. easily move as convection currents
The table below shows the melting points and boiling points of substances A to D. Which substance is a gas at 25^oC? [sm-50]

[Substance] Melting point ^oC(mpt), Boiling Point ^oC(bpt)
1. mpt = -127^o, bpt = -33 ^oC
2. mpt = -39^o, bpt = 354 ^oC
3. mpt = 63^o, bpt = 760 ^oC
4. mpt = 119^o, bpt = 446 ^oC
The table below shows the melting points and boiling points of substances A to D. Which substance is a liquid at 25^oC? [sm-51]

[Substance] Melting point ^oC(mpt), Boiling Point ^oC(bpt)
1. mpt = -127^o, bpt = -33 ^oC
2. mpt = -39^o, bpt = 354 ^oC
3. mpt = 63^o, bpt = 760 ^oC
4. mpt = 119^o, bpt = 446 ^oC
The table below shows the melting points and boiling points of substances A to D. Which substance is a solid at 100^oC? [sm-52]

[Substance] Melting point ^oC(mpt), Boiling Point ^oC(bpt)
1. mpt = -127^o, bpt = -33 ^oC
2. mpt = -39^o, bpt = 354 ^oC
3. mpt = 63^o, bpt = 760 ^oC
4. mpt = 119^o, bpt = 446 ^oC
The table below shows the melting points and boiling points of substances A to D. Which substance is a solid at 100^oC? [sm-53]

[Substance] Melting point ^oC(mpt), Boiling Point ^oC(bpt)
1. mpt = -127^o, bpt = -33 ^oC
2. mpt = -39^o, bpt = 154 ^oC
3. mpt = 99^o, bpt = 140 ^oC
4. mpt = 101^o, bpt = 110 ^oC
The table below shows the melting points and boiling points of substances A to D. Which substance is suitable to use in a thermometer that measures in the range 10^oC to 90^oC? [sm-54]
[Substance] Melting point ^oC(mpt), Boiling Point ^oC(bpt)
1. mpt = 0^o, bpt = 100 ^oC
2. mpt = -200^o, bpt = 40 ^oC
3. mpt = 20^o, bpt = 350 ^oC
4. mpt = -110^o, bpt = 80 ^oC
The table below shows the melting points and boiling points of substances A to D. Which substance is suitable to use in a thermometer that measures in the range -120^oC to 20^oC? [sm-55]
[Substance] Melting point ^oC(mpt), Boiling Point ^oC(bpt)
1. mpt = 0^o, bpt = 100 ^oC
2. mpt = -200^o, bpt = 40 ^oC
3. mpt = -40^o, bpt = 350 ^oC
4. mpt = -110^o, bpt = 80 ^oC
The table below shows the melting points and boiling points of substances A to D. Which substance is suitable to use in a thermometer that measures in the range 0^oC to 100^oC? [sm-56]
[Substance] Melting point ^oC(mpt), Boiling Point ^oC(bpt)
1. mpt = 0^o, bpt = 100 ^oC
2. mpt = -200^o, bpt = 40 ^oC
3. mpt = -40^o, bpt = 350 ^oC
4. mpt = -110^o, bpt = 80 ^oC
The table below shows the melting points and boiling points of substances A to D. Which substance is suitable to use in a thermometer that measures in the range -4^oC to 50^oC? [sm-57]
[Substance] Melting point ^oC(mpt), Boiling Point ^oC(bpt)
1. mpt = 0^o, bpt = 100 ^oC
2. mpt = -200^o, bpt = 40 ^oC
3. mpt = 40^o, bpt = 350 ^oC
4. mpt = -110^o, bpt = 80 ^oC
The rate of evaporation of a water does NOT depend on the? [sm-58]
1. humidity of the surrounding air
2. depth of the water
3. surface area of the water
4. temperature of the water
Which is true about the rate of evaporation of water? [sm-59]
1. it is speeded up on a humid day
2. it is due to the escape of the most energetic particles
3. heat is given out in the process
4. it is slowed down in a breeze
Which is true about the rate of evaporation of water? [sm-60]
1. it is speeded up on a dry day
2. it is due to the escape of the least energetic particles
3. heat is given out in the process
4. it is slowed down in a breeze
Which is true about the rate of evaporation of water? [sm-61]
1. it is speeded up on a humid day
2. it is due to the escape of the least energetic particles
3. heat is absorbed in the process
4. it is slowed down in a breeze
Which is true about the rate of evaporation of water? [sm-62]
1. it is speeded up on a humid day
2. it is due to the escape of the least energetic particles
3. heat is given out in the process
4. it is speeded up on a breezy day
Which of these statements is true about evaporation? [sm-63]
1. it is speeded up on a warm day
2. it is due to the escape of the least energetic particles
3. heat is given out in the process
4. it is speeded up on a humid day
The body is cooled down by sweating. This process mainly involves the heat transfer process of? [sm-64]
1. conduction
2. convection
3. evaporation
4. radiation
Which of the following describes heat transfer due to evaporation? [sm-65]
1. transfer due to the movement of volumes of gases or liquids
2. transfer due to loss of energetic particles from the surface of a liquid
3. transfer by infrared waves which can pass through air
4. transfer due to the vibration of particles in contact with each other
Which of the following best explains why gases diffuse throughout a container? [sm-66]
1. there are no attractive forces between the particles of a gas
2. gases have a low density
3. gas particles move fast
4. gas particles are very small
Which of the following best explains why gases have a low density? [sm-67]
1. the gas particles are very small
2. the particles are far apart
3. gas particles move fast
4. the attractive force between particles are very weak
Which electron arrangement is a Halogen? [as-5]
1. electron arrangement W
2. electron arrangement X
3. electron arrangement Y
4. electron arrangement Z
Which electron arrangement corresponds to the most reactive metal? [as-6]
1. electron arrangement W
2. electron arrangement X
3. electron arrangement Y
4. electron arrangement Z
Which electron arrangement corresponds to the first element on period 2 of the Periodic Table? [as-8]
1. electron arrangement W
2. electron arrangement X
3. electron arrangement Y
4. electron arrangement Z
Which electron arrangement corresponds to the most reactive non-metallic element of the Periodic Table? [as-9]
1. electron arrangement W
2. electron arrangement X
3. electron arrangement Y
4. electron arrangement Z
Which electron arrangement corresponds to a metal in Group 3 of the Periodic Table? [as-10]
1. electron arrangement W
2. electron arrangement X
3. electron arrangement Y
4. electron arrangement Z
Which electron arrangements correspond to two elements in the same Group of the Periodic Table? [as-11]
1. electron arrangement W and X
2. electron arrangements X and Z
3. electron arrangement Y and Z
4. electron arrangement W and Z
Which electron arrangements correspond to two elements on the same period of the Periodic Table? [as-13]
1. electron arrangement W and X
2. electron arrangements X and Z
3. electron arrangement Y and Z
4. electron arrangement W and Z
Which of the elements listed has 1 outer electron? [as-19]
1. element Q
2. element R
3. element Z
4. element G
Which of the elements listed is a Halogen? [as-20]
1. element Q
2. element R
3. element Z
4. element G
Which of the elements listed is an Alkali Metal? [as-21]
1. element Q
2. element R
3. element Z
4. element G
Which of the elements listed would be chemically the most similar? [as-22]
1. elements Q and R
2. elements R and A
3. elements M and X
4. elements G and M
Which of the elements listed are in the same period? [as-23]
1. elements Q and R
2. elements R and A
3. elements M and X
4. elements G and M
Which of the elements listed are both Halogen non-metals with 7 outer electrons? [as-25]
1. elements Z and Y
2. elements Q and R
3. elements G and E
4. elements T and W
Which of the elements listed are both in Group 3? [as-26]
1. elements Z and Y
2. elements Q and E
3. elements G and E
4. elements D and Y
Which of the elements listed are both Noble Gases? [as-27]
1. elements Z and T
2. elements Q and R
3. elements G and E
4. elements T and W
The nucleus of an atom consists of? [as-28]
1. protons and neutrons
2. neutrons and electrons
3. protons and electrons
4. protons only
The Atomic Number of an element is? [as-29]
1. the number of neutrons in the nucleus
2. the sum of the protons and neutrons in the nucleus
3. the number of protons in the nucleus
4. the number of electrons in the outer shell
The Mass Number of an element is? [as-30]
1. the number of neutrons in the nucleus
2. the sum of the protons and neutrons in the nucleus
3. the number of protons in the nucleus
4. the number of electrons in the outer shell
Which description corresponds to a neutron? [as-31]
1. mass = ¹/₁₈₅₀, electric charge = -1
2. mass = 1, electric charge = 0
3. mass = 1, electric charge = +1
4. mass = 4, electric charge = +2
Which description corresponds to a proton? [as-32]
1. mass = ¹/₁₈₅₀, electric charge = -1
2. mass = 1, electric charge = 0
3. mass = 1, electric charge = +1
4. mass = 4, electric charge = +2
Which description corresponds to a electron? [as-36]
1. mass = ¹/₁₈₅₀, electric charge = -1
2. mass = 1, electric charge = 0
3. mass = 1, electric charge = +1
4. mass = 4, electric charge = +2
Which is an electron arrangement of an element in Group 5 of the Periodic Table? [as-37]
1. 2.5
2. 2.7
3. 2.8.8
4. 2.8.8.1
Which is an electron arrangement of a Halogen? [as-38]
1. 2.5
2. 2.7
3. 2.8.8
4. 2.8.8.1
Which is the electron arrangement of a Noble Gas? [as-39]
1. 2.5
2. 2.7
3. 2.8.8
4. 2.8.8.1
Which is the electron arrangement of an Alkali Metal? [as-40]
1. 2.5
2. 2.7
3. 2.8.8
4. 2.8.8.1
Which is an electron arrangement of a Noble Gas? [as-41]
1. 2
2. 2.3
3. 2.8.5
4. 2.8.8.2
Which is an electron arrangement of a Period 1 element? [as-42]
1. 2
2. 2.3
3. 2.8.7
4. 2.8.8.1
Which is an electron arrangement of a Period 2 element? [as-43]
1. 2
2. 2.3
3. 2.8.6
4. 2.8.8.2
Which is an electron arrangement of a Group 3 element? [as-44]
1. 2
2. 2.3
3. 2.8.5
4. 2.8.8.2
Which is an electron arrangement of a Group 5 element? [as-45]
1. 2
2. 2.3
3. 2.8.5
4. 2.8.8.2
Which is an electron arrangement of a Period 3 element? [as-46]
1. 2.1
2. 2.3
3. 2.8.5
4. 2.8.8.2
Which is an electron arrangement of a Group 2 element? [as-47]
1. 2
2. 2.3
3. 2.8.6
4. 2.8.8.2
Which is an electron arrangement of a Period 4 element? [as-48]
1. 2
2. 2.4
3. 2.2
4. 2.8.8.2
How many protons does this sodium atom have? [as-1]
1. 11
2. 12
3. 23
4. 44
How many neutrons does this sodium atom have? [as-2]
1. 11
2. 12
3. 23
4. 44
How many neutrons plus protons does this atom have in total? [as-3]
1. 11
2. 12
3. 23
4. 44
How many electrons does this atom have in total? [as-4]
1. 11
2. 12
3. 23
4. 44
Which electron arrangement most likely corresponds to a non-metallic element? [as-7]
1. electron arrangement W
2. electron arrangement X
3. electron arrangement Y
4. electron arrangement Z
Which electron arrangements corresponds to two very reactive metallic elements of the Periodic Table? [as-12]
1. electron arrangements W and X
2. electron arrangements X and Z
3. electron arrangements Y and Z
4. electron arrangements W and Z
Which of the following have/has no neutrons? [as-14]
1. V only
2. V and Y
3. W and Y
4. Y and Z
Which of the following have/has one neutron? [as-15]
1. V only
2. W and Y
3. X and Y
4. Y and Z
Which of the following have/has two neutrons? [as-16]
1. V only
2. W and Y
3. X and Z
4. W and X
Which of the following have/has one proton? [as-17]
1. V only
2. W and Y
3. Y and Z
4. V, W and X
Which of the following have/has two protons? [as-18]
1. V only
2. X and Z
3. Y and Z
4. V, W and X
Which elements are both likely to be metals? [as-24]
1. elements Z and Y
2. elements Q and R
3. elements G and E
4. elements T and W
Which of the two particles W, X, Y and Z represent different isotopes of the same element? [as-33]
... Particle W: 12 protons, 14 neutrons, 12 electrons
... Particle X: 13 protons, 14 neutrons, 14 electrons
... Particle Y: 14 protons, 13 neutrons, 14 electrons
... Particle Z: 14 protons, 14 neutrons, 12 electrons
1. W and X
2. X and Y
3. X and Z
4. Y and Z
The symbol for an isotope of sodium is .
Which gives the correct numbers of protons, neutrons and electrons in this atom? [as-34]
1. 11 protons, 13 neutrons, 11 electrons
2. 13 protons, 11 neutrons, 11 electrons
3. 24 protons, 12 neutrons, 13 electrons
4. 24 protons, 13 neutrons, 24 electrons
Which of the following could be the symbol for a proton particle? [as-35]
1. symbol Q
2. symbol W
3. symbol Y
4. symbol Z
The symbol of an isotope of cobalt is .
Which gives the correct numbers of protons, neutrons and electrons in this atom? [as-49]
1. 27 protons, 33 neutrons, 27 electrons
2. 33 protons, 27 neutrons, 27 electrons
3. 60 protons, 33 neutrons, 60 electrons
4. 27 protons, 33 neutrons, 33 electrons
The symbol of an isotope of iron is .
Which gives the correct numbers of protons, neutrons and electrons in this atom? [as-50]
1. 31 protons, 26 neutrons, 31 electrons
2. 26 protons, 31 neutrons, 26 electrons
3. 26 protons, 26 neutrons, 31 electrons
4. 31 protons, 31 neutrons, 26 electrons
The symbol for an atom of strontium is .
What is the atomic number of the atom? [as-51]
1. 52
2. 128
3. 38
4. 90
The symbol for an atom of strontium is .
What is the mass number of the atom? [as-52]
1. 52
2. 128
3. 38
4. 90
The symbol for an atom of strontium is .
What is the proton number of the atom? [as-53]
1. 38
2. 90
3. 52
4. 128
The symbol for an atom of strontium is .
What is the neutron number of the atom? [as-54]
1. 38
2. 52
3. 90
4. 128

OCR GCSE 9-1 Gateway Science/Chemistry QUIZ on Topic C1 "PARTICLES"

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