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Q.

Equivalent mass of metal sulphate is 60.Atomic mass of metal is 24. Formula of metal phosphate is

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a

MPO₄

b

M₃PO₄

c

M₃(PO₄)₂

d

M₃(PO₃)₂

answer is D.

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Detailed Solution

$E_{M} + E_{{SO}_{4}^{- 2}}$ = 60

$E_{M} =$ 60 - 48 = 12

valency of metal = $\frac{24}{12}$ = 2

Formula = $M^{+ 2} {({PO}_{4})}^{- 3}$ = $M_{3} {({PO}_{4})}_{2}$

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