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Edexcel IGCSE Chemistry (a) States of matter Question Bank

Practise states of matter using particle diagrams, change-of-state labels, diffusion experiments and solubility data from Edexcel questions.

Syllabus
First assessment 2019
Course
Chemistry 4CH1

Exam points

  • compare solid, liquid and gas particle arrangements using diagrams and descriptions
  • name state changes and add correct state symbols to simple water equations
  • calculate solubility from mass data and explain crystallisation on cooling

Covered syllabus points

1.1 States of matter1.2 State changes1.3 Diffusion and dilution1.4 Solutions terminology1.5C Solubility1.6C Solubility curves1.7C Solubility practical

(a) States of matter question 1

[Maximum number: 2]

This is a question about metals and their compounds.

Mercury is the only metal that is liquid at room temperature.

Describe the difference in the movement of particles in liquid mercury and in a solid metal.

(a) States of matter question 2

[Maximum number: 1]

Carbon dioxide changes directly from a solid to a gas without becoming a liquid.

Give the name of the change of state from solid to gas.

(a) States of matter question 3

[Maximum number: 6]

Question (a)

(a)

State the meaning of the term solute.

[ 1 ]

Question (b)

(b)

State the meaning of the term solvent.

[ 1 ]

Question (c)

(c)

Explain what is meant by a saturated solution.

[ 2 ]

Question (d)

(d)

A dark purple liquid is diluted by adding water.
The diluted liquid becomes a pale purple colour.
Explain the process that causes this change.
Refer to particles in your answer.

[ 2 ]
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