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The Effect Of Changing Concentration (ht Only) (GCSE Chemistry)

The following is a GCSE Chemistry test covering 'The Effect Of Changing Concentration (ht Only)' 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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Which combination will increase the yield of products for the reaction 2 A(g) ? B(g) (endothermic forward)?
Which change will increase both the rate of reaction and the extent (equilibrium yield) for an endothermic forward reaction?
Which change will increase the extent of a reaction (yield of products) for an exothermic reaction at equilibrium according to Le Chatelier’s principle?
A reaction A ? products is first order with respect to A. If the concentration of A is reduced to one quarter of its initial value, what happens to the initial rate?
A student performs titrations with a fixed volume of alkali and varying concentrations of acid. How does the concentration of acid affect the volume needed to neutralise the alkali?
Which experimental observation shows that increasing concentration affects the extent (equilibrium) rather than just the rate?
Which experimental change would NOT affect the equilibrium position for a reaction in a closed vessel?
A reaction is observed to have a linear increase in rate when [A] is doubled, but a quadratic increase when [B] is doubled. What is the overall order of the reaction?
In the reversible reaction A + B ? C + D at equilibrium, what is the effect of adding more B?
Which change will increase the rate of a reaction but will NOT change the equilibrium position?
A student mixes excess magnesium with 0.10 mol/dm3 hydrochloric acid and measures the rate of hydrogen production. If the acid concentration is changed to 0.20 mol/dm3 (all else equal), which is the MOST reasonable expected result?