Energy transfer — Paper 1 · IGCSE Physical Science 0652

6 Some white anhydrous copper(II) sulphate powder is put into a beaker of water and stirred. What shows that the process is exothermic? A A blue solution forms. B A colourless solution forms. C The beaker feels cooler to touch. D The beaker feels warmer to touch.

1 marks

Answer: D

This question in 0652/11 Oct/Nov 2006

6 Hydrogen is used as a fuel. This is because its ……1…… is an ……2…… reaction. Which words correctly complete gaps 1 and 2? 1 2 A oxidation endothermic B oxidation exothermic C reduction endothermic D reduction exothermic

1 marks

Answer: B

This question in 0652/11 Oct/Nov 2009

5 The diagram shows wood burning in air. Which two words describe what happens to the wood and the type of reaction taking place? wood is type of reaction A oxidised endothermic B oxidised exothermic C reduced endothermic D reduced exothermic

1 marks

Answer: B

This question in 0652/11 Oct/Nov 2011

2 In which process is heat energy neither given out nor taken in? Sun C water vapour di f fusin g cloud B water evaporating A ice melting D water vapour iceberg condensing sea water

1 marks

Answer: C

This question in 0652/12 Oct/Nov 2011

5 The diagram shows wood burning in air. Which two words describe what happens to the wood and the type of reaction taking place? wood is type of reaction A oxidised endothermic B oxidised exothermic C reduced endothermic D reduced exothermic

1 marks

Answer: B

This question in 0652/12 Oct/Nov 2011

7 Anhydrous copper(II) sulfate is placed in a test-tube. When water is added, the temperature changes from 17 °C to 27 °C. Which type of reaction takes place? A addition B endothermic C exothermic D oxidation

1 marks

Answer: C

This question in 0652/11 Oct/Nov 2015

7 Anhydrous copper(II) sulfate is placed in a test-tube. When water is added, the temperature changes from 17 °C to 27 °C. Which type of reaction takes place? A addition B endothermic C exothermic D oxidation

1 marks

Answer: C

This question in 0652/12 Oct/Nov 2015

16 Hydrated copper(II) sulfate is heated. Which type of reaction takes place and what is the colour of the product? type of reaction colour of product A irreversible blue B irreversible white C reversible blue D reversible white

1 marks

Answer: D

This question in 0652/11 Oct/Nov 2016

8 Anhydrous copper(II) sulfate is placed in a test-tube. When water is added to the test-tube, the temperature changes from 17 °C to 27 °C. Which type of reaction takes place? A addition B endothermic C exothermic D oxidation

1 marks

Answer: C

This question in 0652/11 Oct/Nov 2018

8 Anhydrous copper(II) sulfate is placed in a test-tube. When water is added to the test-tube, the temperature changes from 17 °C to 27 °C. Which type of reaction takes place? A addition B endothermic C exothermic D oxidation

1 marks

Answer: C

This question in 0652/12 Oct/Nov 2018

6 A student dissolves a sample of ammonium nitrate in water. The student measures the temperature of the mixture before and after the reaction. The results are shown. °C temperature before 21 temperature after 17 Which process describes the reaction? A combustion B endothermic C exothermic D reduction

1 marks

Answer: B

This question in 0652/12 Oct/Nov 2019

9 Which reactions are exothermic? 1 reaction of natural gas with oxygen 2 reaction of coal with oxygen 3 reaction of hydrogen with oxygen A 1 only B 1 and 2 only C 3 only D 1, 2 and 3

1 marks

Answer: D

This question in 0652/11 Oct/Nov 2021

7 Anhydrous copper(II) sulfate is placed in a test-tube. When water is added to the test-tube, the temperature changes from 17 °C to 27 °C. Which type of reaction takes place? A addition B endothermic C exothermic D oxidation

1 marks

Answer: C

This question in 0652/11 Oct/Nov 2022

17 Which type of reaction occurs when calcium carbonate is converted into calcium oxide? A cracking B displacement C neutralisation D thermal decomposition

1 marks

Answer: D

This question in 0652/11 Oct/Nov 2022