Air — Paper 1 · IGCSE Physical Science 0652

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

16 Which statement is not correct? A Carbon monoxide is formed by the incomplete combustion of carbon-containing substances. B Car exhaust fumes can contain oxides of nitrogen. C Clean air contains approximately 79 % oxygen and 20 % nitrogen. D Sulfur dioxide is a common air pollutant.

1 marks

Answer: C

This question in 0652/11 Oct/Nov 2010

17 Which gases are released into the air from burning coal? carbon carbon sulfur monoxide dioxide dioxide Jv Jv Jv 0 Oo WwW > v v x v x v x v x

1 marks

Answer: A

This question in 0652/11 Oct/Nov 2011

16 Which gases are released into the air from burning coal? carbon carbon sulfur monoxide dioxide dioxide Jv Jv Jv 0 Oo WwW > v v x v x v x v x

1 marks

Answer: A

This question in 0652/12 Oct/Nov 2011

15 A sample of clean, dry air is passed repeatedly over hot copper until all the oxygen reacts with the copper as shown. clean dry air copper heat The volume of air decreases by 15 cm3. What is the starting volume of the sample of air? A 30 cm3 B 50 cm3 C 75 cm3 D 100 cm3

1 marks

Answer: C

This question in 0652/11 Oct/Nov 2015

15 A sample of clean, dry air is passed repeatedly over hot copper until all the oxygen reacts with the copper as shown. clean dry air copper heat The volume of air decreases by 15 cm3. What is the starting volume of the sample of air? A 30 cm3 B 50 cm3 C 75 cm3 D 100 cm3

1 marks

Answer: C

This question in 0652/12 Oct/Nov 2015

14 Air is a mixture of different gases. Which row gives the percentage of nitrogen, oxygen and other gases in the air? percentage of gas present in air other nitrogen oxygen gases A 1 21 78 B 21 78 1 C 78 1 21 D 78 21 1

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 0652/11 Oct/Nov 2017

14 Air is a mixture of different gases. Which row gives the percentage of nitrogen, oxygen and other gases in the air? percentage of gas present in air other nitrogen oxygen gases A 1 21 78 B 21 78 1 C 78 1 21 D 78 21 1

1 marks

Answer: D

This question in 0652/12 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

16 Which gas makes up approximately 78% of clean air? A argon B carbon dioxide C oxygen D nitrogen

1 marks

Answer: D

This question in 0652/11 Oct/Nov 2018

16 Which gas makes up approximately 78% of clean air? A argon B carbon dioxide C oxygen D nitrogen

1 marks

Answer: D

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

16 A sample of clean dry air is passed over heated copper until all of the oxygen is removed. clean dry air copper heat The final volume of the remaining gas is 63 cm3. What is the approximate starting volume of the sample of air? A 50 cm3 B 76 cm3 C 80 cm3 D 286 cm3

1 marks

Answer: C

This question in 0652/11 Oct/Nov 2019

16 Which two gases are the main components of clean air? A carbon dioxide and oxygen B carbon dioxide and nitrogen C nitrogen and oxygen D oxygen and argon

1 marks

Answer: C

This question in 0652/12 Oct/Nov 2019

18 Gas X is a carbon-containing greenhouse gas which has no effect on limewater. Which statement about gas X is correct? A It is a gas formed during respiration. B It is the main constituent of clean air. C It is the main constituent of natural gas. D It relights a glowing splint.

1 marks

Answer: C

This question in 0652/11 Oct/Nov 2023

18 Gas X is a carbon-containing greenhouse gas which has no effect on limewater. Which statement about gas X is correct? A It is a gas formed during respiration. B It is the main constituent of clean air. C It is the main constituent of natural gas. D It relights a glowing splint.

1 marks

Answer: C

This question in 0652/12 Oct/Nov 2023

17 A sample of clean dry air contains 20% oxygen. It is passed repeatedly over hot copper, as shown. clean dry air copper heat The volume of air decreases by 15 cm3. What is the starting volume of the sample of air? A 30 cm3 B 50 cm3 C 75 cm3 D 100 cm3

1 marks

Answer: C

This question in 0652/11 Oct/Nov 2024