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Hydrolysis constants of two salts KA a...

Hydrolysis constants of two salts KA and KB of weak acids HA and HB are `10^(-8) and 10^(-6)` . If the dissociation constant of third acid HC is `10^(-2)` . The order of acidic strengths of three acids will be :

A

`HA gt HB gt HC`

B

`HB gt HA gt HC`

C

`HCgt HA gt HB`

D

`HA = HB = HC`

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Knowledge Check

  • Hydrolysis constants of two salts K_(hA) and K_(hB) of weak acids HA and are 10^(-8) and 10^(-6) . If the dissociation constant of third acid HC is 10^(-2) . The order of acidic strength of three acids will be

    A
    `HA gt HB gt HC`
    B
    ` HB gt HA gt HC`
    C
    `HC gt HA gt HB`
    D
    `HA = HB = HC`

  • The dissociation constant of an acid HA is 1 xx 10^(-5) . The pH of 0.1 molar solution of the acid will be

    A
    Five
    B
    Four
    C
    Three
    D
    One

  • Hydrolysis constant for a salt of weak acid and weak base would be

    A
    `K_(h)=(K_(w))/(K_(a))`
    B
    `K_(h)=(K_(w))/(K_(b))`
    C
    `K_(h)=(K_(w))/(K_(a)K_(b))`
    D
    None of these

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