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A metal M forms the sulphate M2(SO4)3 0....

A metal M forms the sulphate `M_2(SO_4)_3` 0.596 gm of the sample reacts with excess `BaCl_2` to give, 1.22 gm `BaSO_4`. What is the atomic weight of the M ? (S = 32, Ba + 137.3)

A

26.9

B

69.7

C

55.8

D

2.3

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A
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