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Question

Which gas is evolved at the anode during the electrolysis of $$KHF_{2}$$ in anhydrous $$HF$$?


A
F2
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B
H2
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C
O2
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D
H2 and O2
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Solution

The correct option is B $$F_{2}$$
Electrolysis of $$KHF_2$$ results in the evolution of $$H_2$$ at cathode and $$F_2$$ at anode and the two chambers are separated by s diaphragm of teflon so that the two gases don't react.
option A is correct.

Chemistry

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