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Question

The formula of carbonate of a metal M is M2CO3.
(a) What will be the formula of its iodide?
(b) What will be the formula of its nitride?
(c) What will be the formula of its phosphate?

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Solution

The formula of carbonate of a metal M is M2CO3.
Valency of carbonate is 2
As here two metals are present,
So, the valency of metal, M is 1.

(a) Valency of iodide is 1.
So, the formula for iodide of metal M will be MI.

(b) Valency of nitrogen is 3.
So, the formula for nitride of metal M will be M3N.

(c) Valency of phosphate is 3.
So, the formula for the phosphate of metal M will be M3PO4.

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