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Which of the ...

Question

Which of the following is used during the preparation of fluorine by Whytlaw Gray method :

A

aqueous KF

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B

aqueous HF

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C

molten

K H F_{2}

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D

N H_{4} F

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Solution

The correct option is C molten $K H F_{2}$
matter $K H F_{2}$ is used during the preparation of fluorine to increase
the conductance of solution

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