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KCl crystallizes int the same type of...

KCl crystallizes int the same type of lattic as done NaCl . Given that `r_(Na^(+))//r_(Cl^(-)) = 0.50` and `r_(Na^(+))//r_(K^(+)) = 0.70` , Calcualte the ratio of the side of the unit cell for KCl to that for NaCl:

A

`1.143`

B

`1.224`

C

`1.414`

D

`0.875`

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The correct Answer is:
A
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