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Q.

The formula of a metallic carbonate is ${MCO}_{3} .$ The formula of that metallic perchlorate is

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a

${MClO}_{4}$

b

$M_{2} {ClO}_{4}$

c

$M {({ClO}_{4})}_{2}$

d

$M_{3} {ClO}_{4}$

answer is D.

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Detailed Solution

The chemical formula of metallic carbonate is ${MCO}_{3}$

Valence of ${CO}_{3}^{- 2}$ ion is 2. Hence, the valence of M must be 2.

According to Kris-cross method, we can find the chemical formula of metallic perchlorate.

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