The characteristic properties of acids and bases — Paper 2 · IGCSE Physical Science 0652

9 Hydrogen bromide gas reacts with water to produce an acidic solution. The equation for the reaction is HBr + H2O → H3O+ + Br – Which statement describes what happens during the reaction? A Bromine accepts an electron from the water. B Hydrogen bromide accepts a proton from the water. C Hydrogen bromide donates a proton to the water. D Hydrogen bromide loses an electron to the water.

1 marks

Answer: C

This question in 0652/21 Oct/Nov 2017

9 Hydrogen bromide gas reacts with water to produce an acidic solution. The equation for the reaction is HBr + H2O → H3O+ + Br – Which statement describes what happens during the reaction? A Bromine accepts an electron from the water. B Hydrogen bromide accepts a proton from the water. C Hydrogen bromide donates a proton to the water. D Hydrogen bromide loses an electron to the water.

1 marks

Answer: C

This question in 0652/22 Oct/Nov 2017

11 Hydrochloric acid reacts with aqueous sodium hydroxide to form a salt and compound Y. Which row shows the action of sodium hydroxide and the name of compound Y? action of compound Y sodium hydroxide A as a proton acceptor hydrogen B as a proton acceptor water C as a proton donor hydrogen D as a proton donor water

1 marks

Answer: B

This question in 0652/21 Oct/Nov 2018

15 The diagram shows the properties of four substances. Which one is magnesium? Does it bend easily or break easily? bends easily breaks easily Does it react with dilute Does it react with dilute hydrochloric acid? hydrochloric acid? yes no yes no A B C D

1 marks

Answer: A

This question in 0652/21 Oct/Nov 2018

11 Hydrochloric acid reacts with aqueous sodium hydroxide to form a salt and compound Y. Which row shows the action of sodium hydroxide and the name of compound Y? action of compound Y sodium hydroxide A as a proton acceptor hydrogen B as a proton acceptor water C as a proton donor hydrogen D as a proton donor water

1 marks

Answer: B

This question in 0652/22 Oct/Nov 2018

15 The diagram shows the properties of four substances. Which one is magnesium? Does it bend easily or break easily? bends easily breaks easily Does it react with dilute Does it react with dilute hydrochloric acid? hydrochloric acid? yes no yes no A B C D

1 marks

Answer: A

This question in 0652/22 Oct/Nov 2018

11 Wasp stings contain an alkali. The pH values of some substances are shown. substance pH value saliva 7.4 lime 12.4 salt solution 7.0 vinegar 3.5 Which substance could be used to neutralise a wasp sting? A lime B saliva C salt solution D vinegar

1 marks

Answer: D

This question in 0652/21 Oct/Nov 2020

11 Wasp stings contain an alkali. The pH values of some substances are shown. substance pH value saliva 7.4 lime 12.4 salt solution 7.0 vinegar 3.5 Which substance could be used to neutralise a wasp sting? A lime B saliva C salt solution D vinegar

1 marks

Answer: D

This question in 0652/22 Oct/Nov 2020

11 Which type of substance accepts protons? A acid B base C oxidising agent D reducing agent

1 marks

Answer: B

This question in 0652/21 Oct/Nov 2021

7 Sulfuric acid is titrated with 25.0 cm3 of 0.05 mol / dm3 aqueous sodium hydroxide. The equation for this reaction is shown. H2SO4 + 2NaOH → Na2SO4 + 2H2O Which volume of 0.1 mol / dm3 sulfuric acid is required to neutralise this volume of aqueous sodium hydroxide? A 6.25 cm3 B 12.5 cm3 C 25.0 cm3 D 100.0 cm3

1 marks

Answer: A

This question in 0652/21 Oct/Nov 2022

10 The chart shows the colour of universal indicator at different pH values. colour red orange green blue violet pH 1 2 3 4 5 6 7 8 9 10 11 12 13 14 A solution of lemon juice is only slightly acidic. Which colour does universal indicator give with this solution? A blue B orange C red D violet

1 marks

Answer: B

This question in 0652/21 Oct/Nov 2022

10 The chart shows the colour of universal indicator at different pH values. colour red orange green blue violet pH 1 2 3 4 5 6 7 8 9 10 11 12 13 14 A solution of lemon juice is only slightly acidic. Which colour does universal indicator give with this solution? A blue B orange C red D violet

1 marks

Answer: B

This question in 0652/22 Oct/Nov 2022

13 Hydrogen chloride reacts with water as shown. HCl + H2O → Cl – + H3O+ Which statement about this reaction is correct? A Hydrogen chloride is acting as an acid because it accepts a proton. B Hydrogen chloride is acting as a base because it accepts a proton. C Water is acting as an acid because it accepts a proton. D Water is acting as a base because it accepts a proton.

1 marks

Answer: D

This question in 0652/21 Oct/Nov 2023

13 Hydrogen chloride reacts with water as shown. HCl + H2O  Cl – + H3O+ Which statement about this reaction is correct? A Hydrogen chloride is acting as an acid because it accepts a proton. B Hydrogen chloride is acting as a base because it accepts a proton. C Water is acting as an acid because it accepts a proton. D Water is acting as a base because it accepts a proton.

1 marks

Answer: D

This question in 0652/22 Oct/Nov 2023

12 Which statement describes the behaviour of an acid and a base in aqueous solution? A An acid accepts electrons and a base donates electrons. B An acid donates electrons and a base accepts electrons. C An acid accepts protons and a base donates protons. D An acid donates protons and a base accepts protons.

1 marks

Answer: D

This question in 0652/21 Oct/Nov 2024

18 Which statement about lime (calcium oxide) is correct? A It is manufactured by the action of heat on hematite. B It is manufactured by the action of heat on limestone. C It is used to increase the acidity of soils. D It is used to neutralise alkaline industrial waste.

1 marks

Answer: B

This question in 0652/21 Oct/Nov 2024