CAIE IGCSE Chemistry 1. States of matter Question Bank

Practise states of matter by reading particle diagrams, heating data, diffusion setups and questions about physical changes.

[Maximum number: 9]

Particles behave differently when in different physical states.

(a)

Solids have a fixed volume and a definite shape.

Gases have no fixed volume and take the shape of the container.
Describe the volume and shape of liquids.

[ 1 ]

(b)

Complete the table to show the separation, arrangement and movement of particles in each physical state.

Table for Question (b) — CAIE IGCSE Chemistry

[ 6 ]

(c)

Name the following changes of state.

[ 2 ]

(i)

Ice turning into water.

[ 1 ]

(ii)

Solid carbon dioxide turning directly into gaseous carbon dioxide at room temperature.

[ 1 ]

[Maximum number: 7]

Concentrated ammonia solution gives off ammonia gas. Concentrated hydrochloric acid gives off hydrogen chloride gas. Ammonia, $\mathrm{NH}_{3}$ , and hydrogen chloride, HCl , are both colourless gases. Ammonia reacts with hydrogen chloride to make the white solid ammonium chloride.

Apparatus is set up as shown.

Figure for Question 1. States of matter question 2 — CAIE IGCSE Chemistry

After ten minutes a white solid forms in the tube where the gases meet.

(a)

Name the process by which the ammonia and hydrogen chloride gases move in the tube.

[ 1 ]

(b)

At which point, A, B, C or D, does the white solid form? Explain why the white solid forms at that point.
the solid forms at
explanation

[ 3 ]

(c)

The experiment was repeated at a higher temperature.

Predict how the results of the experiment would be different. Explain your answer.

[ 3 ]

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Covered syllabus points

1. States of matter question 1

Question (a)

Question (b)

Question (c)

Question (i)

Question (ii)

1. States of matter question 2

Question (a)

Question (b)

Question (c)