Identification of ions and gases — Paper 1 · IGCSE Physical Science 0652

10 The table shows the results of two experiments on an aqueous solution containing two cations. experiment 1 experiment 2 reagent add an excess of NaOH (aq) add an excess of NH3 (aq) pale blue precipitate in a white precipitate in a dark blue result colourless solution solution What are the cations? A Al 3+ and Cu2+ B Al 3+ and Fe2+ C Ca2+ and Cu2+ D Ca2+ and Fe2+

1 marks

Answer: A

This question in 0652/11 Oct/Nov 2005

11 Solution X is tested as shown. solution X acidified aqueous aqueous sodium barium ions hydroxide white precipitate green precipitate Which ions are present in solution X? anion cation A nitrate copper(II) B nitrate iron(II) C sulphate copper(II) D sulphate iron(II)

1 marks

Answer: D

This question in 0652/11 Oct/Nov 2006

10 Aqueous ammonia is added to a solution of a metal sulphate. A green precipitate that is insoluble in excess of the aqueous ammonia forms. Which metal ion is present? A Cu2+ B Fe2+ C Fe3+ D Zn2+

1 marks

Answer: B

This question in 0652/11 Oct/Nov 2008

9 An alkaline gas is given off when a compound is heated with aqueous sodium hydroxide. Which ion is present in the compound? A aluminium B ammonium C calcium D zinc

1 marks

Answer: B

This question in 0652/11 Oct/Nov 2009

9 Aqueous sodium hydroxide and aqueous ammonia each give a white precipitate when added to aqueous zinc sulfate. What happens when an excess of each of these reagents is added? excess NaOH(aq) excess NH3(aq) A precipitate dissolves precipitate dissolves B precipitate dissolves precipitate does not dissolve C precipitate does not dissolve precipitate dissolves D precipitate does not dissolve precipitate does not dissolve

1 marks

Answer: A

This question in 0652/11 Oct/Nov 2010

7 Which gas is produced when sodium carbonate reacts with hydrochloric acid? A carbon dioxide B chlorine C hydrogen D oxygen

1 marks

Answer: A

This question in 0652/11 Oct/Nov 2011

8 Which can be used to show that a gas is ammonia? A B C D flame glowing limewater splint moist splint litmus paper

1 marks

Answer: C

This question in 0652/11 Oct/Nov 2011

7 Which can be used to show that a gas is ammonia? A B C D flame glowing limewater splint moist splint litmus paper

1 marks

Answer: C

This question in 0652/12 Oct/Nov 2011

9 Which gas is produced when sodium carbonate reacts with hydrochloric acid? A carbon dioxide B chlorine C hydrogen D oxygen

1 marks

Answer: A

This question in 0652/12 Oct/Nov 2011

7 Which two substances react to form carbon dioxide? A dilute hydrochloric acid and calcium carbonate B dilute hydrochloric acid and magnesium C dilute hydrochloric acid and sodium oxide D hydrogen peroxide and manganese(IV) oxide

1 marks

Answer: A

This question in 0652/11 Oct/Nov 2013

9 When solid calcium hydroxide and solid ammonium chloride are heated together a colourless gas is formed. The gas turns red litmus paper blue. What is the gas? A ammonia B chlorine C hydrogen D sulfur dioxide

1 marks

Answer: A

This question in 0652/11 Oct/Nov 2013

7 Which two substances react to form carbon dioxide? A dilute hydrochloric acid and calcium carbonate B dilute hydrochloric acid and magnesium C dilute hydrochloric acid and sodium oxide D hydrogen peroxide and manganese(IV) oxide

1 marks

Answer: A

This question in 0652/12 Oct/Nov 2013

9 When solid calcium hydroxide and solid ammonium chloride are heated together a colourless gas is formed. The gas turns red litmus paper blue. What is the gas? A ammonia B chlorine C hydrogen D sulfur dioxide

1 marks

Answer: A

This question in 0652/12 Oct/Nov 2013

9 A sample of copper(II) chloride is mixed with ammonia solution until the ammonia is in excess. A separate sample of copper chloride solution is mixed with acidified silver nitrate solution. Which observations are correct? excess acidified silver nitrate ammonia solution solution A blue precipitate colourless solution B blue precipitate white precipitate C blue solution colourless solution D blue solution white precipitate

1 marks

Answer: D

This question in 0652/11 Oct/Nov 2014

9 A sample of copper(II) chloride is mixed with ammonia solution until the ammonia is in excess. A separate sample of copper chloride solution is mixed with acidified silver nitrate solution. Which observations are correct? excess acidified silver nitrate ammonia solution solution A blue precipitate colourless solution B blue precipitate white precipitate C blue solution colourless solution D blue solution white precipitate

1 marks

Answer: D

This question in 0652/12 Oct/Nov 2014

10 A colourless solution of X is tested with aqueous sodium hydroxide and with acidified silver nitrate. test observation aqueous sodium hydroxide added white precipitate formed acidified silver nitrate added white precipitate formed What is X? A iron(II) carbonate B iron(II) sulfate C zinc sulfate D zinc chloride

1 marks

Answer: D

This question in 0652/11 Oct/Nov 2015

10 A colourless solution of X is tested with aqueous sodium hydroxide and with acidified silver nitrate. test observation aqueous sodium hydroxide added white precipitate formed acidified silver nitrate added white precipitate formed What is X? A iron(II) carbonate B iron(II) sulfate C zinc sulfate D zinc chloride

1 marks

Answer: D

This question in 0652/12 Oct/Nov 2015

10 Which gas is produced when sodium carbonate reacts with hydrochloric acid? A carbon dioxide B chlorine C hydrogen D oxygen

1 marks

Answer: A

This question in 0652/11 Oct/Nov 2016

11 A gas was tested as shown. test observation lighted splint placed in the gas lighted splinted went out damp red litmus paper placed in the gas red litmus paper turned blue gas passed through limewater limewater was colourless What is the gas? A ammonia B carbon dioxide C chlorine D hydrogen

1 marks

Answer: A

This question in 0652/11 Oct/Nov 2016

11 A gas was tested as shown. test observation lighted splint placed in the gas lighted splinted went out damp red litmus paper placed in the gas red litmus paper turned blue gas passed through limewater limewater was colourless What is the gas? A ammonia B carbon dioxide C chlorine D hydrogen

1 marks

Answer: A

This question in 0652/12 Oct/Nov 2016

9 Which test is used to show that a gas is ammonia? A B C D flame glowing splint splint limewater damp litmus paper

1 marks

Answer: D

This question in 0652/11 Oct/Nov 2017

9 Which test is used to show that a gas is ammonia? A B C D flame glowing splint splint limewater damp litmus paper

1 marks

Answer: D

This question in 0652/12 Oct/Nov 2017

12 The results of tests on an aqueous solution, X, are shown. reagent result aqueous sodium hydroxide green precipitate insoluble in excess aqueous silver nitrate white precipitate acidified with dilute nitric acid What is X? A iron(II) chloride B iron(II) sulfate C iron(III) chloride D iron(III) sulfate

1 marks

Answer: A

This question in 0652/11 Oct/Nov 2018

12 The results of tests on an aqueous solution, X, are shown. reagent result aqueous sodium hydroxide green precipitate insoluble in excess aqueous silver nitrate white precipitate acidified with dilute nitric acid What is X? A iron(II) chloride B iron(II) sulfate C iron(III) chloride D iron(III) sulfate

1 marks

Answer: A

This question in 0652/12 Oct/Nov 2018

10 Which row describes a test for oxygen and the approximate percentage of oxygen in clean air? approximate percentage test for oxygen of oxygen in clean air A glowing splint relights 21 B glowing splint relights 78 C lighted splint pops 21 D lighted splint pops 78

1 marks

Answer: A

This question in 0652/11 Oct/Nov 2019

15 Which substance is used as a chemical test for water? A anhydrous copper(II) sulfate B hydrated cobalt(II) chloride C hydrated copper(II) sulfate D pink cobalt(II) chloride

1 marks

Answer: A

This question in 0652/11 Oct/Nov 2019

10 Which gas turns damp red litmus paper blue? A ammonia B carbon dioxide C chlorine D hydrogen

1 marks

Answer: A

This question in 0652/12 Oct/Nov 2019

15 Which substance is used as a chemical test for water? A anhydrous copper(II) sulfate B hydrated cobalt(II) chloride C hydrated copper(II) sulfate D pink cobalt(II) chloride

1 marks

Answer: A

This question in 0652/12 Oct/Nov 2019

12 A colourless solution of X is tested with aqueous sodium hydroxide and with acidified silver nitrate solution. The results are shown. test result aqueous sodium hydroxide white precipitate acidified silver nitrate white precipitate What is X? A iron(II) carbonate B iron(II) sulfate C zinc sulfate D zinc chloride

1 marks

Answer: D

This question in 0652/11 Oct/Nov 2020

13 What is used to show the presence of chlorine? A a lighted splint B bromine water C damp litmus paper D limewater

1 marks

Answer: C

This question in 0652/11 Oct/Nov 2020

13 A gas is tested as shown. test observation lighted splint is placed in the gas lighted splint goes out damp red litmus paper is placed in the gas red litmus paper turns blue gas is passed through limewater limewater is colourless What is the gas? A ammonia B carbon dioxide C chlorine D hydrogen

1 marks

Answer: A

This question in 0652/11 Oct/Nov 2021

10 Which test is used to show that a gas is ammonia? A B C D flame glowing splint splint limewater damp litmus paper

1 marks

Answer: D

This question in 0652/11 Oct/Nov 2022

11 Substance X is warmed with excess aqueous sodium hydroxide. A gas is evolved and a colourless solution is obtained. What is substance X? A ammonium sulfate B copper(II) carbonate C iron(II) sulfate D zinc sulfate

1 marks

Answer: A

This question in 0652/11 Oct/Nov 2022

13 A solution containing substance Z is tested. The results of the tests are shown. test result dilute sodium hydroxide white precipitate solution added dissolves in excess acidified barium nitrate white precipitate solution added What is Z? A ammonium chloride B ammonium sulfate C zinc chloride D zinc sulfate

1 marks

Answer: D

This question in 0652/11 Oct/Nov 2023

13 A solution containing substance Z is tested. The results of the tests are shown. test result dilute sodium hydroxide white precipitate solution added dissolves in excess acidified barium nitrate white precipitate solution added What is Z? A ammonium chloride B ammonium sulfate C zinc chloride D zinc sulfate

1 marks

Answer: D

This question in 0652/12 Oct/Nov 2023

12 What is used to show the presence of chlorine? A a lighted splint B bromine water C damp litmus paper D limewater

1 marks

Answer: C

This question in 0652/11 Oct/Nov 2024