Oxides — Paper 1 · IGCSE Science - Combined 0653

21 The diagram shows an experiment on combustion. gas jar oxygen substance litmus solution burning The litmus solution turns red. Which substance is burning? A copper B magnesium C sulphur D zinc

1 marks

Answer: C

This question in 0653/11 Oct/Nov 2005

27 The reaction shown occurs naturally. C6H12O6 + 6O2 6CO2 + 6H2O P Q Which descriptions of P and Q are correct? P is a hydrocarbon Q is an acidic oxide A yes yes B yes no C no yes D no no

1 marks

Answer: C

This question in 0653/11 May/June 2007

21 Polluted air contains toxic oxides of the elements carbon, C, and sulfur, S, emitted from car exhausts. Which row in the table is correct? toxic oxide toxic oxide is acidic formula is XO A C only C only B C only S only C S only C only D S only S only

1 marks

Answer: C

This question in 0653/11 May/June 2009

20 Sulfur dioxide is formed as a pollutant when fossil fuels are burned. Which properties does sulfur dioxide have? toxic acidic corrosive v v v 0 Oo WwW > v v x v x x x x x

1 marks

Answer: A

This question in 0653/11 Oct/Nov 2011

18 Sulfur dioxide is formed as a pollutant when fossil fuels are burned. Which properties does sulfur dioxide have? toxic acidic corrosive v v v 0 0O WwW > v v x v x x x x x

1 marks

Answer: A

This question in 0653/13 Oct/Nov 2011

19 Four pairs of oxides are listed. W calcium oxide and sodium oxide X calcium oxide and sulfur dioxide Y nitrogen dioxide and sodium oxide Z sulfur dioxide and nitrogen dioxide Which pairs of oxides would neutralise each other? A pair W and pair X B pair W and pair Z C pair X and pair Y D pair Y and pair Z

1 marks

This question in 0653/11 May/June 2012

19 Barium oxide is a metallic oxide. A solution of barium oxide is ……1…… with a pH ……2…… than seven. Which words correctly complete gaps 1 and 2? 1 2 A acidic greater B acidic less C alkaline greater D alkaline less

1 marks

Answer: C

This question in 0653/12 May/June 2012

19 Barium oxide is a metallic oxide. A solution of barium oxide is ……1…… with a pH ……2…… than seven. Which words correctly complete gaps 1 and 2? 1 2 A acidic greater B acidic less C alkaline greater D alkaline less

1 marks

Answer: C

This question in 0653/13 May/June 2012

18 Element X forms a basic oxide. Which row describes element X and its position in the Periodic Table? position in the type of element Periodic Table A metal on the left B metal on the right C non-metal on the left D non-metal on the right

1 marks

Answer: A

This question in 0653/11 Oct/Nov 2014

19 Element X forms a basic oxide. Which row describes element X and its position in the Periodic Table? position in the type of element Periodic Table A metal on the left B metal on the right C non-metal on the left D non-metal on the right

1 marks

Answer: A

This question in 0653/12 Oct/Nov 2014

18 Element X forms a basic oxide. Which row describes element X and its position in the Periodic Table? position in the type of element Periodic Table A metal on the left B metal on the right C non-metal on the left D non-metal on the right

1 marks

Answer: A

This question in 0653/13 Oct/Nov 2014

22 Calcium oxide is added to water containing universal indicator. The universal indicator turns blue. What is the pH of the solution? A 1 B 6 C 7 D 11

1 marks

Answer: D

This question in 0653/11 May/June 2020

22 Three powders are added to dilute sulfuric acid, as shown. magnesium powder dilute sulfuric acid Which powders react to produce water? magnesium oxide powder dilute sulfuric acid magnesium magnesium oxide x \ x magnesium carbonate \ \ «Ox magnesium carbonate powder dilute sulfuric acid key ¥ = does produce water X = does not produce water

1 marks

Answer: C

This question in 0653/12 May/June 2022

20 Calcium oxide is added to water containing universal indicator. The universal indicator turns blue. What is the pH of the solution? A 1 B 6 C 7 D 11

1 marks

Answer: D

This question in 0653/11 Oct/Nov 2023

24 Which substance does not react with dilute hydrochloric acid to produce copper chloride? A copper B copper carbonate C copper hydroxide D copper oxide

1 marks

Answer: A

This question in 0653/13 Oct/Nov 2023