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The edge length of face centred cubic ce...

The edge length of face centred cubic cell of an ionic substance is 508pm. If the radius of cation is 110 pm, the radius of anion is :

A

618 pm

B

144 pm

C

288 pm

D

398 pm

Text Solution

Verified by Experts

The correct Answer is:
B
Edge length `=2(r^(+)+r^(-))`
`r^(-)=144` pm
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The edge length of a face centred cubic cell of an ionic substance is 508 pm .If the radius of the cation is 110 pm the radius of the anion is

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