Home
Class 11
CHEMISTRY
Statement : The dissociation constants o...

Statement : The dissociation constants of polyrotic acid are in the order `K_(1)gtK_(2)gtK_(3)`.
Explanation : The `[H^(+)]` furnished in first step of dissociation exerts common ion effect to reduce the secend dissociation so on.

A

S is correct but E is wrong.

B

S is wrong but E is correc.

C

Both S and E are correct and E is correct explanation of S.

D

Both S and E are correct but E is correct explanation of S.

Text Solution

Verified by Experts

The correct Answer is:
C
Explanation is correct reason for statement.
Doubtnut Promotions Banner Mobile Dark
|

Topper's Solved these Questions

  • IONIC EQUILIBRIUM

    P BAHADUR|Exercise Exercise7|33 Videos

  • GASEOUS STATE

    P BAHADUR|Exercise Exercise -9|1 Videos

  • MOLE AND EQUIVALENT CONCEPT

    P BAHADUR|Exercise Exercise 9 Advanced numerical problems|61 Videos

Similar Questions

Explore conceptually related problems

The acid dissociation constant of uric acid is K_(a)=4.0xx10^(-6) M. The pH of a sample of urine is 6.0. What is the ratio of concentration of urate ion to uric acid in the urine?

The dissociation constant of two weak acids are k_(a_(1)) & k_(a_(2)) respectively. Their relative strength is -

Knowledge Check

  • Assertion :- The dissocation constant of poly basic acid are in order K_(1)gtK_(2)gtK_(3) . Reason :- The H^(+) ion furnished in first step of dissocation exert common ion effect to reduce the second dissociation and soon.

    A
    If both Assertion & Reason are True & the Reason is a correct explanation of the Assertion.
    B
    If both Assertion & Reason are True but Reason is not a correct explanation of the Assertiion.
    C
    If Assertion is True but the Reason is False.
    D
    If both Assertion & Reason are False

  • Statement: The dissociation constant of water at 60^(@)C is 10^(-13) . Explanation: The pH of water is 6.5 and that it behaves as acid at 60^(@)C .

    A
    S is correct but E is wrong.
    B
    S is wrong but E is correc.
    C
    Both S and E are correct and E is correct explanation of S.
    D
    Both S and E are correct but E is correct explanation of S.

  • K_1 and K_2 are the first and second dissociation constants of oxalic acid. Choose the correct statement –

    A
    `K_(2)" is equal to "K_(1)`
    B
    `K_(2)" is equal to 1000 times "K_(1)`
    C
    `K_(2)" is equal to "1/1000" times "K_(1)`
    D
    All of the above

    • Similar Questions

    Explore conceptually related problems

    If the dissociation constants of two substances are K_(1) " and " K_(2) respectively , then the ratio of degree of dissociation for a given concentration , is given by

    The dissociation constant of a weak monobasic acid K_(a) is 1xx 10^(-5) . The pH of 0.1 M of that acid would be

    If the dissociation constants of two weak acids HA_(1) and HA_(2) are K_(1) and K_(2) , then the relative strengths of HA_(1) and HA_(2) are given by

    Statement: The acidic nature of some cations is: B^(3+)gtBe^(2+)gtNa^(+)gtK^(+) Explanation: More is the effective nuclear charge on cation more is its acidic nature.

    The acid dissociation constant K_(a) of acetic acid is 1.74 xx 10^(-5) at 298 K. The pH of a solution of 0.1 M acetic acid is

    Home
    Profile