The formula of the sulphide of a metal ‘M’ is M2S3. State the formula of its: [3]
(i) Sulphite
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Answer: WITH NITRIDE= M3N2 WITH BICARBONATE= M(HCO3)2 Explanation: IT IS JUST SIMPLE VALENCY EXCHANGE METHOD.. SINCE VALENCY OF SULPHIDE IS -2 SO THE VALANCY OF M MUST BE +2
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