Reactivity series — Paper 2 · IGCSE Sciences - Co-ordinated (9-1) 0973

22 Samples of four different metals, L, M, N and O, are added to solutions of the metal chlorides. The table shows which metals react with the metal chlorides. L chloride | Mchloride | Nchloride | O chloride L x x x M Jv x J N J Jv J O J x x What is the order of reactivity? most least reactive reactive A L M O N B L O M N Cc N M O L D N O M L key J¥ = reaction X = no reaction

1 marks

Answer: C

This question in 0973/21 May/June 2019

23 Which statement is not a reason why aluminium is used in aircraft manufacture? A It forms low density alloys. B It is malleable. C It is more reactive than iron. D It is resistant to corrosion.

1 marks

Answer: C

This question in 0973/21 May/June 2020

23 Which statement is not a reason why aluminium is used in aircraft manufacture? A It forms low density alloys. B It is malleable. C It is more reactive than iron. D It is resistant to corrosion.

1 marks

Answer: C

This question in 0973/22 May/June 2020

22 The equations for four reactions are shown. Mn + Ni(NO3)2  Mn(NO3)2 + Ni Ni + PbO  NiO + Pb PbO + Sn  SnO + Pb Sn(NO3)2 + Ni  Ni(NO3)2 + Sn What is the order of reactivity of the metals? most least reactive reactive A lead tin nickel manganese B manganese nickel tin lead C manganese tin nickel lead D lead nickel tin manganese

1 marks

Answer: B

This question in 0973/21 Oct/Nov 2020

22 Four metals W, X, Y and Z are added to different solutions of metal nitrates. The results are shown. metal nitrate solution WwW Xx Y Z Ww x x x key Xx Jv v x J/ = reacts metal Y Jv x x X = no reaction Z v Jv J Which statements are correct? A 1 2 3 4 1 and 2 Metal Z is the most reactive. Metal W has the lowest tendency to form positive ions. Metal X is less reactive than metal W. Metal Y is more reactive than metal X. B 1and4 C 2and3 D 3and4

1 marks

Answer: A

This question in 0973/21 May/June 2021

22 Some observations from an investigation are shown. 1 Metal W does not react with dilute hydrochloric acid. 2 Metal X does not react with cold water but does react with dilute hydrochloric acid. 3 Metal Y reacts with cold water. 4 Metal Z does not react with dilute hydrochloric acid but does react with aqueous ions of metal W. What is the order of reactivity of the metals? most least reactive reactive A W X Z Y B W Z X Y C Y X Z W D Y Z X W

1 marks

Answer: C

This question in 0973/22 May/June 2021

22 A block of zinc is attached to an underground steel pipe as shown. zinc block steel pipe The zinc stops the steel rusting by sacrificial protection. Which statement is not correct? A Zinc is more reactive than the iron in steel. B Zinc is oxidised in preference to the iron in steel. C Zinc prevents oxygen from reaching the steel. D Zinc transfers electrons to the iron in the steel.

1 marks

Answer: C

This question in 0973/21 Oct/Nov 2021

23 A piece of iron is coated with a layer of zinc. Which statement explains why zinc prevents iron from rusting, even when the layer of zinc is damaged? A Iron is less reactive than zinc and zinc atoms lose electrons less easily than iron atoms. B Iron is less reactive than zinc and zinc atoms lose electrons more easily than iron atoms. C Iron is more reactive than zinc and zinc atoms lose electrons less easily than iron atoms. D Iron is more reactive than zinc and zinc atoms lose electrons more easily than iron atoms.

1 marks

Answer: B

This question in 0973/21 May/June 2022

22 Carbon is below aluminium but above zinc in the reactivity series. Iron is below zinc in the reactivity series. Which statements are correct? 1 Carbon can be used to extract aluminium and iron from their ores. 2 Aluminium can be used to extract zinc and iron from their ores. 3 Carbon can be used to extract zinc and iron from their ores. 4 Zinc can be used to extract aluminium and iron from their ores. A 1 and 2 B 1 and 3 C 2 and 3 D 3 and 4

1 marks

Answer: C

This question in 0973/22 May/June 2022

24 Which statement about reactions of metals is correct? A When copper is added to aqueous aluminium nitrate, the colourless solution turns blue. B When magnesium oxide is heated with iron, solid iron(III) oxide is formed. C When potassium oxide is heated with copper, an orange-brown solid is formed. D When zinc is added to aqueous copper sulfate, the blue solution turns colourless.

1 marks

Answer: D

This question in 0973/21 Oct/Nov 2022

24 Silver oxide is reduced by heating with carbon more easily than copper oxide is reduced by heating with carbon. A copper strip is placed into a solution of silver nitrate as shown. silver nitrate solution copper strip Which row describes the reaction? the colourless the copper . solution slowly strip slowly a silver-grey ; metal is formed turns blue dissolves 0 OW > x \ \ x \ «MK \ x x \ \ x

1 marks

Answer: B

This question in 0973/21 Oct/Nov 2023

20 A piece of sodium is added to water. Which row shows the type of reaction and the energy level diagram for the reaction? type of reaction energy level diagram 2NaOH + H2 energy A endothermic 2Na + 2H2O progress of reaction 2Na + 2H2O energy B endothermic 2NaOH + H2 progress of reaction 2NaOH + H2 energy C exothermic 2Na + 2H2O progress of reaction 2Na + 2H2O energy D exothermic 2NaOH + H2 progress of reaction

1 marks

Answer: D

This question in 0973/21 May/June 2024

22 Metal X reacts with aqueous metal Y2+ ions. The ionic equation for the reaction is shown. X + Y2+  X2+ + Y What are metals X and Y? X Y A copper iron B copper zinc C zinc copper D aluminium iron

1 marks

Answer: C

This question in 0973/22 May/June 2024

20 Substance Q is added to cold water. Q floats on the water and hydrogen gas is made. What is Q? A iodine B lithium C magnesium D zinc

1 marks

Answer: B

This question in 0973/21 Oct/Nov 2025