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Assertion: PbI(4) is a stable compound. ...

Assertion: `PbI_(4)` is a stable compound.
Reason: `Pb^(2+)` ions with concentrated solution of `KI` forms a soluble complex.

A

If both assertion and reason are true and the reason is the correct explanation of teh assertion.

B

If both assertion and reason are true but reason in not the correct explation of the assertion.

C

If assertion is true but reason is false.

D

If assertion is false but reason is true.

Text Solution

Verified by Experts

The correct Answer is:
D
Assertion: `Pb^(4+)overset(+2e)toPb^(2+)`(due to inert pair effects) `2I^(-) overset(-2e)toI_(2)` (`I^(-)` acts as a reducing agent) so `PbI_(4)` is not a stable compounds.
Reason: `Pb^(2+)+4I^(-)to[PbI_(4)]^(-)`
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Knowledge Check

  • Assertion : Pbl_4 is a stable compound. Reason : Iodide stabilizes higher oxidation state.

    A
    If the both assertion and reason are true and the reason is the correct explanation of the assertion
    B
    If both assertion and reason are true and the 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 statements.

  • Which of the following compounds has the lowest Pb^(+2) ion concentration?

    A
    `PbCO_(3), K_(sp) = 1.5 xx 10^(-13)`
    B
    `Pb(OH)_(2), K_(Sp) = 4.2 xx 10^(-15)`
    C
    `PbSO_(4), K_(sp) = 1.3 xx 10^(-8)`
    D
    `PbI_(2), K_(sp) = 8.3 xx 10^(-9)`

  • Assertion. PbI_(4) is a stable than PbCl_(4) . Reason. Iodide ion stabilizes higher oxidation state.

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

    • Similar Questions

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    Assertion: Pb^(4+) "ion can easily reduced to" Pb^(2+) ion. Reason: Pb^(2+) ion is paramagnetic in nature

    Statement-I : PbI_(4) is a stable compound. Statement-II : Iodidle has higher oxidation state.

    Iodine is more soluble in aqueous solution of KI because it forms solubel

    Assertion: Pb^(4+) can be reduced easily to Pb^(2+) . Reason: Pb^(2+) is paramagnetic.

    Assertion: PbCl_(2) is more stable more stable than PbCl_(4) Reason: PbCl_(4) is strong oxidizing agent.

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