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Calculating Rates Of Reactions (GCSE Chemistry)

The following is a GCSE Chemistry test covering 'Calculating Rates Of Reactions' from the broader topic The Rate And Extent Of Chemical Change. The test is geared towards the AQA exam board style syllabus.
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Below a typical questions that will be covered in this test. You final score will be logged on your account

An experiment gives concentration data: [A] falls from 0.40 mol dm-3 to 0.10 mol dm-3 in 30 s. What is the average rate of decrease of [A]?
Why does the instantaneous rate often fall during a reaction even if conditions (T, catalyst, surface area) are unchanged?
If 30 cm3 of gas is produced in 60 s, what are the correct units for the reaction rate calculated from this data?
What happens to the instantaneous rate as a reaction proceeds (for most reactions with no other changes)?
If doubling the concentration of A causes the reaction rate to increase by a factor of four, what does this suggest about the rate law in terms of A?
Which unit is correct for a rate expressed as change in concentration per time?
Which of the following best defines the rate of a chemical reaction?
Which of the following best describes how you obtain the initial rate from experimental volume–time gas data?
If a plotted line on a concentration–time graph reaches a horizontal asymptote (level), what does the y-value of the asymptote represent?
How does increasing the temperature generally affect the rate of a chemical reaction?
What is the purpose of the initial-rate method in kinetics experiments?