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The pyknometric density of sodium chlori...

The pyknometric density of sodium chloride crystal is `2.165xx10^(3)kg m^(-3)` while its `X` ray density is `2.178xx10^(3)kg m^(-3)` the fraction of unoccupied sites in `NaCl` crystal is

A

`5.96xx10^(-3)`

B

`5.96`

C

`5.96xx10^(-2)`

D

`5.96xx10^(-1)`

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The correct Answer is:
A
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The pyknometric density of NaCl crystal is 2.165 xx 10^(3 kg m^(-3) while its X -ray density is 2.178 xx 10^(-3) kg m^(-3) . The fraction of unoccupied sites in NaCl crystal is a. 5.96 b. 5.96 xx 10^(-2) c. 5.96 xx 10^(-1) d. 5.96 xx 10^(-3)

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