The characteristic properties of acids and bases — Paper 1 · IGCSE Physical Science 0652

8 Which reaction is an example of neutralisation? A KMnO4(s) + H2O(l) → KMnO4(aq) B 2Na(s) + Cl2(g) → 2NaCl(s) C PbBr2(l) → Pb(s) + Br2(g) D H2SO4(aq) + CuO(s) → CuSO4(aq) + H2O(I)

1 marks

Answer: D

This question in 0652/11 Oct/Nov 2005

9 The diagram shows a titration experiment. dilute hydrochloric acid aqueous sodium carbonate Universal Indicator containing is green Universal Indicator start end-point Which pH values in the table could be correct? start end-point dilute aqueous sodium solution in hydrochloric acid carbonate conical flask A 2 7 5 B 2 9 7 C 12 7 9 D 12 9 7

1 marks

Answer: B

This question in 0652/11 Oct/Nov 2006

8 The diagram shows an experiment in which magnesium powder is added to dilute sulphuric acid. ig Powaer , MgSO, dilute (aq) H»SO, before after Which statement correctly compares the pH and temperature of the final solution with the values of the original acid? final solution has higher pH higher temperature v v 0 0O WwW > v x x v x x

1 marks

Answer: A

This question in 0652/11 Oct/Nov 2007

7 The diagram shows an experiment. magnesium oxide powder dilute hydrochloric acid The temperature of the resulting solution is higher than that of the acid. Which terms describe the reaction? A endothermic and neutralisation B endothermic and oxidation C exothermic and neutralisation D exothermic and oxidation

1 marks

Answer: C

This question in 0652/11 Oct/Nov 2008

10 A solution is made by adding sodium oxide to water. Which pH change will occur? A 1 to 7 B 7 to 1 C 7 to 12 D 12 to 7

1 marks

Answer: C

This question in 0652/11 Oct/Nov 2009

17 Exhaust gases contain the pollutants CO, NO2 and SO2. To remove any acidic gas, the gases are passed through the apparatus shown. The remaining gas is collected in the right-hand syringe. pushed inwards exhaust gases remaining pollutants aqueous sodium hydroxide What happens to the pH of the aqueous sodium hydroxide and what could the remaining gas contain? pH of aqueous sodium gas in right-hand syringe hydroxide contains A decreases CO only B decreases CO and NO2 only C increases CO only D increases CO and SO2 only

1 marks

Answer: A

This question in 0652/11 Oct/Nov 2009

18 Lime is used to treat industrial waste products. Which pH change occurs in this treatment? A 2 to 7 B 7 to 2 C 9 to 7 D 9 to 2

1 marks

Answer: A

This question in 0652/11 Oct/Nov 2009

5 The temperature of two solutions is measured before, during and after they react with each other. The graph shows the results. temperature °9 time Which terms must apply to this reaction? endothermic neutralisation A v v B v x Cc x v D x x

1 marks

Answer: B

This question in 0652/11 Oct/Nov 2010

8 A colourless solution of solid X has lost its label. Possible identities of X are shown. 1 sodium carbonate 2 sodium hydroxide 3 sodium chloride The solution reacts with an acid, forming a salt and water only. What could X be? A 1 only B 1 or 2 only C 1, 2 or 3 D 2 only

1 marks

Answer: D

This question in 0652/11 Oct/Nov 2010

16 A farmer tests the pH of his soil. The pH is 5 so the farmer adds some slaked lime (calcium hydroxide). Why does the farmer add slaked lime to his soil? A because slaked lime is an acid B because calcium is a reactive metal C to fertilise the soil D to neutralise the soil

1 marks

Answer: D

This question in 0652/11 Oct/Nov 2014

16 A farmer tests the pH of his soil. The pH is 5 so the farmer adds some slaked lime (calcium hydroxide). Why does the farmer add slaked lime to his soil? A because slaked lime is an acid B because calcium is a reactive metal C to fertilise the soil D to neutralise the soil

1 marks

Answer: D

This question in 0652/12 Oct/Nov 2014

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 0652/12 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

16 A power station burns coal to generate electricity. Sulfur dioxide, an acidic gas, is present in the waste gases. Which compound is used to neutralise the sulfur dioxide? A calcium chloride B hydrated cobalt chloride C hydrated copper sulfate D slaked lime

1 marks

Answer: D

This question in 0652/11 Oct/Nov 2017

16 A power station burns coal to generate electricity. Sulfur dioxide, an acidic gas, is present in the waste gases. Which compound is used to neutralise the sulfur dioxide? A calcium chloride B hydrated cobalt chloride C hydrated copper sulfate D slaked lime

1 marks

Answer: D

This question in 0652/12 Oct/Nov 2017

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 0652/11 Oct/Nov 2018

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 0652/12 Oct/Nov 2018

9 Which statement describes the pH of all acids? A It is between 1 and 2. B It is between 12 and 13. C It is less than 7. D It is more than 7.

1 marks

Answer: C

This question in 0652/11 Oct/Nov 2019

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 0652/11 Oct/Nov 2020

12 What is produced when an acid reacts with a metal carbonate? A a metal salt, carbon and water B a metal salt, carbon dioxide and water C a metal salt and carbon dioxide only D a metal salt and water only

1 marks

Answer: B

This question in 0652/11 Oct/Nov 2021

9 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 0652/11 Oct/Nov 2022

11. Sulfuric acid is reacted with magnesium. Which row identifies the products of this reaction? magnesium water hydrogen A Jv Jv J B Jv Jv x Cc Jv x v D x Jv Jv

1 marks

Answer: C

This question in 0652/11 Oct/Nov 2023

11. Sulfuric acid is reacted with magnesium. Which row identifies the products of this reaction? 0 OO WD > magnesium sulfate ~ QOS Qk SK hydrogen KS \ & OK

1 marks

Answer: C

This question in 0652/12 Oct/Nov 2023