Which of the following would cause the percentage yield of a reaction to be less than 100%?

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Question

Which of the following would cause the percentage yield of a reaction to be less than 100%?

Accepted Answer

Loss of product during transfer — Award 1 mark for identifying practical losses. A is incorrect — excess reactant does not reduce yield percentage. C is incorrect — catalysts increase rate but do not affect yield. D is incorrect — temperature changes may affect rate and equilibrium but loss during transfer is the direct cause of reduced yield.

Answer

Using excess reactant

Answer

Loss of product during transfer

Answer

Increasing the temperature

Answer

Using a catalyst

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