What is meant by pseudo first order reac...

What is meant by pseudo first order reaction? Given an example of pseudo first order reaction. Write rate equation for the same.

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Example. `CH_(3)COOC_(2)H_(5)+H_(2)O overset(H^(+))toCH_(3)COOH+C_(2)H_(5)OH`

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In pseudo - order reactions

The actual order of reaction is different from that expected using rate law expression

The concentration of at least one reactant is taken in large excess

The concentration of reactant taken in excess may be taken as constant

All of these

dissociation of sulphur trioxide

hydrolysis of methyl acetate in dilute solution

dissociation of phosphorus pentachloride

decompostion of ammonia on hot Pt.

Dissociation of hydrogen iodide

Hydrolysis of methyl acetate in dilute solution

Dissociation of phosphorus pentachloride

Decompoition of hydrogen peroxide