The equivalent weight of SO2 in the given reaction SO2+H2S→S+H2O is :
A
64
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B
32
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C
16
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D
8
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Solution
The correct option is B 16 The molecular weight of SO2 is 64 g/mol. The oxidation number of S changes from +4 to 0. The change in the oxidation number of S is 4. The equivalent weight of SO2 is Equivalent weight=Molecular weightChange in the oxidation number Equivalent weight=644 Equivalent weight=16