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Question

What is `X' in the following reaction?
KHSO4+F2HF+X

A
K2SO4
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B
K2S2O4
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C
K2S2O8
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D
K2S2O2
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Solution

The correct option is B K2S2O8
when F2 reacts with KHSO4
K2S2O8 is formed as F oxidises S in KHSO4
The reaction is as follow:


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