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Assertion : H(3)PO(2) is a diabasic acid...

Assertion : `H_(3)PO_(2)` is a diabasic acid.
Reason: There are two H atoms directly attached to P.

A

Both A and R are true and R is the correct explanation of A

B

Both A and R are true but R is false

C

A is true but R is false

D

A is false but R is true

Text Solution

Verified by Experts

The correct Answer is:
D
Assertion: Hypo phosphorus acid has the structure. Only the H-atom attached to O is ionisable and as such it is a monobasic acid. In the structure two H-atoms are directly attached to P.
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Knowledge Check

  • Assertion : H_(3)PO_(3) is a diabasic acid. Reason: There are two H atoms directly attached to P.

    A
    Both A and R are true and R is the correct explanation of A
    B
    Both A and R are true but R is false
    C
    A is true but R is false
    D
    A is false but R is true

  • Assertion. H_(3)PO_(3) is a dibasic acid. Reason. There are two H atoms directly attached to P.

    A
    If both assertion and reason are true, and is the correct explanation of the assertion.
    B
    If both assertion and reason are true, but reason is not the correct explanation of the assertion.
    C
    If assertion is true, but reason is false.
    D
    If both assertion and reason are false

  • Assertion. H_(3)PO_(3) is a dibasic acid. Reason. There are two H atoms directly attached to P.

    A
    If both assertion and reason are true, and reason is the correct explanation of the assertion.
    B
    If both assertion and reason are ture, but reason is not the correct explanantion of the assertion.
    C
    If assertion is true, but reason is false.
    D
    If both assertion and reason are false