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Q.

The ionic radius of Cr is minimum in which of the following compounds?

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a

$CrC l_{3}$

b

${CrF}_{3}$

c

$K_{2} {CrO}_{4}$

d

${Cr}_{2} O_{3}$

answer is D.

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Detailed Solution

$K_{2} {CrO}_{4} \to 2 K^{+} + {CrO}_{4}^{2 -}$

Question Image

In these for compound in $K_{2} {CrO}_{4}$ ionic-radius is very small.

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