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The Hydrolysis constant of MX is (Given,...

The Hydrolysis constant of `MX` is (Given, `K_(b)` of `MOH` is `2 xx 10^(-6)` and `K_(a)` of `HX` is `5 xx 10^(-7)`)

A

`10^(2)`

B

`10^(-2)`

C

`10^(-3)`

D

`10^(3)`

Text Solution

Verified by Experts

The correct Answer is:
B
`K_(h)=(k_(w))/(K_(a)xxK_(b))`
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Knowledge Check

  • The hydrolysis constant of NaX ( K_(a) of HX is 2 xx 10^(-6) ) is

    A
    `5 xx 10^(-9)`
    B
    `2 xx 10^(-8)`
    C
    `5 xx 10^(-6)`
    D
    `10^(-7)`

  • Calculate the hydrolysis constant of a salt of week acid (K_(a) = 2 xx 10^(-6)) and of a weak base (K_(b) = 5 xx 10^(-7))

    A
    `10^(-4)`
    B
    `10^(-2)`
    C
    `10^(-6)`
    D
    `10^(-8)`

  • The hydrolysis constant of the salt with NO_(2)^(-) ion ( K_(a) = 4.5 xx 10^(-10) for HNO_(2) )

    A
    `2.22 xx 10^(-5)`
    B
    `4.44 xx 10^(-5)`
    C
    `2.22 xx 10^(-6)`
    D
    `4.44 xx 10^(-2)`

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