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When ethyl acetate was hydrolyzed in the...

When ethyl acetate was hydrolyzed in the presence of `0.1 M HCl`, the constant was found to be `5.40 xx 10^(-5) s^(-1)`. But when `0.1 M H_(2)SO_(4)` was used for hydrolyiss, the rate constant found to be `6.20 xx 10^(-5) s^(-1)`. form these we can say that

A

`H_(2)SO_(4)` is stronger than HCl

B

`H_(2)SO_(4)` is weaker than HCl

C

Both the acids have equal strength

D

The data is insufficient to compare the strengths of HCl and `H_(2)SO_(4)`.

Text Solution

Verified by Experts

The correct Answer is:
A
(a) : For equimolar solution of two acids, `("Strength of Acid 1")/("Strenght of Acid 2")=(k_(1))/(k_(2))`
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When ethyl acetate was hydrolysed in pressure of 0.1 N HCI, the rate constant was found to be 5.40 xx 10^(-5) sec^(-1) . But when 0.1 N H_2SO_4 was used for hydrolysis, the rate constant was found to be 6.25 xx10^(-5)sec^(-1). Thus, it may be concluded that :

In the reaction, A to B , the value of the rate constant was found to be 1.0 xx 10^(-2) mol^(-1) L s^(-1) . What is the order of the reaction? How will the catalyst affect of the value of the rate constant?

Knowledge Check

  • When ethyl acetate was hydrolysed in presence of 0.1 N HCl, the rate constant was found to be 5.40 xx 10^(-5)s^(-1) , But when 0.1 NH_2SO_4 was used for the hydrolysis, the rate constant was found to be 6.20 xx 10^(-5)s^(-1) . From these values we can say that

    A
    `H_2SO_4` is stronger than HCl
    B
    `H_2SO_4` is weaker than HCI
    C
    both the acids have equal strength
    D
    the data is insufficient to compare the strengths of HCl and `H_2SO_4`

  • When ethyl acetate was was hydrolysedin presemce of 0.1 M HCl, the rate constant was found to be 5.4xx10^(-5)s^(-1) . But in presence of 0.1 M H_(2)SO_(4) the rate constant was found to be 6.25xx10^(-5)s^(-1) . Thus it may be concluded that:

    A
    `H_(2)SO_(4)` furnishes more `H^(+)` than HCl
    B
    `H_(2)SO_(4)` furnishes less `H^(+)` than HCl
    C
    both have the same strength
    D
    will depend on concentration of ethyl acetate

  • The rate constant for the hydrolyiss of ethyl acetate in the presence of 0.1 N acid (A) was found to be 5.4 xx 10^(5) s^(-1) and for the hydrolyiss of ethyl acetate in the presence of 0.1 N acid (B) , it was 6.2 xx 10^(-5) s^(-1) . form these observations, one may conclude that

    A
    A. Acids `(A)` and `(B)` are both of same strength.
    B
    B. Acid `(B)` is weaker than acid `(A)`.
    C
    C. Acid `(B)` is stronger than acid `(A)`.
    D
    D. Data in insufficient.

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