Q.

The number of gram - atoms of sulphur in 2 moles of peroxydisulphuric acid is

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a

2

b

3

c

1

d

4

answer is D.

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Detailed Solution

Peroxydisulphuric acid is H2S2O81 mole of H2S2O8 contain 2 gram atoms of Sulphur2 moles of H2S2O8 contain 'X' gram atoms of SulphurX =2 x 21=4
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