Question

The valency of a metal m is 3 give the formula of its sulphate

Answer 1

MSO4 for M+2 and SO4-2

M2(SO4)3for M+3

By criss cross method valency is exchanged

Answer 2

Answer:X2(SO4)3

Explanation:

BASICALLY IT'S ALUMINIUM OKAY AND IF ELEMENT IS X THEN FORMULA IS X2(SO4)3

SULPHATE BEING DIVALENT

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