First slide

Chlorine

Question

When Brine solution is subjected to electrolysis the gases liberated at anode and at cathode are

Easy

A

H₂ and Cl₂
B

H₂ and O₂
C

Cl₂ and O₂
D

Cl₂ and H₂

Solution

Cathode(-): $H_{2} O + {Na}^{+} + e^{-} â NaOH + \frac{1}{2} H_{2}$
Anode(+) : ${Cl}^{-} â \frac{1}{2} {Cl}_{2} + e^{-}$

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