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NH(4)CN is a salt of weak acid HCN(K(a)=...

`NH_(4)CN` is a salt of weak acid `HCN(K_(a)=6.2xx10^(-10))` and a weak base `NH_(4)OH(K_(b)=1.8xx10^(-5))`. 1 molar solution of `NH_(4)CN` will be :-

A

`[H^(+)] gt 10^(-27)`

B

`[p^(H) lt 7`

C

`K_(h)=10^(-5)`

D

All

Text Solution

Verified by Experts

The correct Answer is:
D
`K_(a) gt K_(b)`
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Knowledge Check

  • NH_(4)CN is a salt of weak acid HCN (Ka=6.2xx10^(-10)) and a weak base NH_(4)OH(K^(b)=1.8xx10^(-5)) A one molar solution of NH_(4)CN will be :-

    A
    Neutral
    B
    Strongly acidic
    C
    Strongly basic
    D
    Weakly basic

  • HCN is a weak acid (K_a=6.2xx10^(-10)).NH_4 OH is a weak base (K_b=1.8xx10^(-5)). A 1 M solution of NH_4CN would be

    A
    strongly acidic
    B
    weakly acidic
    C
    neutral
    D
    weakly basic

  • 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)`

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