Question

why the actual yield is always less than the theoretical yield of a reaction​

Answer 1

An actual yield is the mass of a product actually obtained from the reaction. It is usually less than the theoretical yield. The reasons for this include: incomplete reactions, in which some of the reactants do not react to form the product.

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Answer 2

Answer:

The actual yield may be less than the theoretical yield due to the following reasons:

1) Side reactions may produce by-products

2) Some reactions are reversible

3) Mechanical loss takes place due to filtration, distillation and separation by separating funnel, washing and crystallization.

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