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Assertion : H...

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Assertion : Hydrolysis of ester in acidic medium follows first order kinetics Reason: Hydrolysis ofester is independent of the concentration of acid used

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Q. In the acid catalysed hydrolysis of ester the volume of base required at various instant are as follows.

Time	0	10 sec	$t_{\infty}$
$V_{N a O H}$	24 mL	32 mL	40 mL

If hydrolysis follows first order kinetics then find its rate constant (approx).

Q. Assertion :The acid hydrolysis of ester takes place more rapidly in

D_{2} O

H_{2} O

D_{3} O^{+}

is stronger acid than

H_{3} O^{+}

Q. The acid hydrolysis of the ester is:
(i) first order reaction
(ii) bimolecular reaction
(iii) unimolecular reaction
(iv) second order reaction

The true statements are:

Q. Assertion :A solution of sucrose in water is dextrorotatory but on hydrolysis in the presence of

H^{⨁}

,it becomes leavorotatory. Reason: Inversion of sugar follows first order kinetics.

Q. Assertion :Hydrolysis of ethyl acetate in presence of acid is a reaction of first order whereas in presence of alkali, it is a reaction of second order. Reason: Acid acts as catalyst only whereas alkali acts as one of the reactant.

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