Published by:
CGP EDU Academic Team
Published on: August 14, 2026
Name the compound which is used to obtain fluorine gas on electrolysis. At which electrode does F 2 appears?
Text Solution
Verified by ExpertsThe correct answer is:
A
A solution of potassium hydrogen fluoride (KHF 2 ) in anhydrous HF.
KF + HF ⎯→ K [HF 2 ] 
H 2 + F 2
On Electrolysis :
Anode : 
⎯→ 
Cathode : 2HF + 
⎯→ H 2 + 
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