1.

Saponiflication of ethyl acetate (CH_(3)COOC_(2)H_(5)) by NaOH is studied by titration of the reaction mixture, have 1 : 1 molar ratio of the reactants. If 10ml of 1 N HCl is required by 5ml of the solution at the start and 8ml of 1N HCl is required by another 5ml after 10 minutes, then rate constant is

Answer»

`k=(2.303)/(10)log.(10)/(8)`
`k=(2.303)/(10)log.(10)/(2)`
`k=(1)/(10)[(1)/(8)-(1)/(10)]`
`k=(1)/(10)[(1)/(2)-(1)/(10)]`

Answer :C


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