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Ionic solids, with Schottky defects cont...

Ionic solids, with Schottky defects contain their structure

A

Equal number of cation and anion vacancies

B

Anion vacancies and interstitial anions

C

Cation vacancies only

D

Cation vacancies and interstitial cations

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The correct Answer is:
A
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Statement I: In any ionic solid [MX] with Schottky defect, the number of positive and negative ions are same. Statement II: An equal number of cation and anion vacancies is present.

Statement I: In any ionic solid [MX] with Schottky defect, the number of positive and negative ions are same. Statement II: An equal number of cation and anion vacancies is present.

In the following question, a statement of assertion is followed by a statement of reason. Mark the correct choice. Assertion : In any ionic solid [MX] with schottky defects, the number of positive and negative ions are same. Reason : Equal number of cation and aniojn vacancies are present .

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Knowledge Check

  • In the Schottky defect:

    A
    an ion moves to interstitial position between the lattice points
    B
    electrons are trapped in a lattice site
    C
    some lattice sites are vacant
    D
    some extra cations are present in interstitial spaces

  • In the following question, a statement of assertion is followed by a statement of reason. Mark the correct choice. Assertion : In any ionic solid [MX] with schottky defects, the number of positive and negative ions are same. Reason : Equal number of cation and aniojn vacancies are present .

    A
    Both assertion and reason are true and reason is the correct explanation of assertion .
    B
    Both assertion and reason are true but reason.
    C
    Assertion is true but reason is false.
    D
    Both assertion and reason are false.