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Assertion: In frekel defect in an ionic ...

Assertion: In frekel defect in an ionic crystal, an ion is dispalced from its normal site to an interstitial site.
Reason: There is both a vacancy and an intersitial ion.

A

If both assertion and reason are true and the reason 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 bur reason is false

D

If assertion is false bur reason is true

Text Solution

Verified by Experts

The correct Answer is:
a
There is both a vacancy and an interstial ion
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Knowledge Check

  • In a crystal some iron are missing from normal sites. This is an example of

    A
    F-centres
    B
    Interstitial defect
    C
    Frenkel defect
    D
    Schottky defect

  • In a crystal, some ions are missing from normal sites. This is an example of :

    A
    `F-` centres
    B
    interstitial defect
    C
    Frenkel defect
    D
    Schottky defect

  • Assertion. Frenkel defects are shown by silver halides. Reason. Ag^+ ions have small size.

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