Lakhmir Singh & Manjit Kaur - Chemistry

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Q. 495.0( 6 Votes )

The formula of ca

Class 9th Lakhmir Singh & Manjit Kaur - Chemistry 3. Atoms and Moleculers

Answer :

According to formula M₂CO₃, the metal M is univalent having valency of +1 and valency of carbonate is -2 i.e. bivalent.

(a) Iodine is univalent as valency of iodine is -1, hence formula of iodide = MI

(b) Nitrogen is trivalent as valency of nitrogen is -3, hence formula of nitride = M₃N

(c) Phosphorus is trivalent as valency of phosphorus is -3, hence formula of phosphate = M₃PO₄

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