Cambridge IGCSE Chemistry practice

Paper 6 structured question: Rate of reaction

Try the question first, then check the answer and practise the same topic again.

At a glance

Paper

Marks

Topic

Rate of reaction

Exam-style question

Try this first

Paper 6Alternative to PracticalPractical1 marks

Measuring the rate of a reaction between hydrochloric acid and sodium thiosulfate.

Method

In this experiment, hydrochloric acid is added to sodium thiosulfate solution. The time taken for the solution to turn cloudy is recorded.

Time (s)	Concentration of Sodium Thiosulfate (mol/dm³)
10	0.1
20	0.2
30	0.3
40	0.4

a
State the independent variable in this experiment.
Your answer
Aim for approximately 1 distinct marking point.
[1]

0 of 1 part answered

Answer every part before opening the mark scheme.

Common mistake

No common mistake is linked to this question yet.

Flashcard 1 of 6

Press Space to flip, arrows to move

Paper 6Alternative to PracticalPractical2 marks

Results Table

The table shows the time taken for a reaction to complete at different temperatures.

a
Describe the trend shown in the results table.
Your answer
Aim for approximately 2 distinct marking points.
[2]