Question

A dilute aqueous Solution of sodium fluoride is electrolysed; the products at the abode and cathode are

Answer 1

HERE IS YOUR ANSWER:

NaF⇌ (Na+) + (F-)
H2O⇌ (H+) + (OH-)
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Reaction at cathode:

H+ and Na+ cations comes towards the cathode but H+ are deposited.

(H+) + e = H
H+H= H2 (Hydrogen gas)
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Reaction at anode:

OH- and F- ions comes towards the anode but only OH- ions is deposited at the anode.

(OH-) - e= OH
OH+OH= H2O + O
O+O=O2 (Oxygen gas)
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Therefore, Hydrogen gas is found in the cathode side which is connected with negative terminal of a battery and Oxygen gas is found in the anode side which is connected with the positive terminal of the battery.

By Chemistry Lavoisier

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