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  • Given below are two statements : one is labelled as Assertion (A) and the other is labelled as Reason (R). Assertion (A) : In a part

Given below are two statements : one is labelled as Assertion (A) and the other is labelled as Reason (R).
Assertion (A) :
In a particular point defect, an ionic solid is electrically neutral, even if few of its cations are missing from its unit cells.
Reason (R) :
In an ionic solid, Frenkel defect arises due to dislocation of cation from its lattice site to interstitial site, maintaining overall electrical neutrality.
In the light of the above statements, choose the most appropriate answer from the options given below:
 

Option: 1

Both (A) and (R) are correct but (R) is not the correct explanation of (A)
 


Option: 2

(A) is correct but (R) is not correct
 


Option: 3

(A) is not correct but (R) is correct
 


Option: 4

Both (A) and (R) are correct and (R) is the correct explanation of (A)


Answers (1)

best_answer

Assertion (A) is correct as ionic solids are always electrically neutral. The given example is of metal deficiecy defect.

Reason (R) is also correct as frenkel defect is a dislocation defect

however (R) does not explain (A)

Hence correct option is 1

Posted by

manish painkra

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