CAIE IGCSE Chemistry 10.3 Air Quality and Climate Topic Practice

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Question 1

[Maximum number: 1]

The apparatus shown is set up and left for a week.

Figure for Question 1 — CAIE IGCSE Chemistry

Which diagram shows the level of the water at the end of the week?

A

See water-level diagram A in the official apparatus figure.

B

See water-level diagram B in the official apparatus figure.

C

See water-level diagram C in the official apparatus figure.

D

See water-level diagram D in the official apparatus figure.

Question 2

[Maximum number: 1]

Which element has an oxide that is used as a food preservative?

A

helium

B

hydrogen

C

iron

D

sulfur

Question 3

[Maximum number: 1]

Which compounds both contribute to acid rain?

A

carbon monoxide and carbon dioxide

B

carbon monoxide and oxides of nitrogen

C

oxides of nitrogen and sulfur dioxide

D

sulfur dioxide and carbon dioxide

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