In the electrolysis of aqueous solution of copper sulphate using copper strips as anode and cathode, the anode reaction is

Question

In the electrolysis of aqueous solution of copper sulphate using copper strips as anode and cathode, the anode reaction is (A) Cu2++2e-→ Cu (B) Cu → Cu2++2e- (C) 2HO-→ H2+(1/2)O2+2e- (D) SO2-4→ SO4+2e-

Tardigrade Admin · Accepted Answer

Correct answer is (b) Cu → Cu2++2e-

Q. In the electrolysis of aqueous solution of copper sulphate using copper strips as anode and cathode, the anode reaction is

$C u^{2 +} + 2 e^{-} \to C u$

$C u \to C u^{2 +} + 2 e^{-}$

$2 H O^{-} \to H_{2} + \frac{1}{2} O_{2} + 2 e^{-}$

$S O_{4}^{2 -} \to S O_{4} + 2 e^{-}$

$2 H S O_{4}^{-} \to H_{2} S_{2} O_{8} + 2 e^{-}$

Correct answer is (b) $C u \to C u^{2 +} + 2 e^{-}$

Q. In the electrolysis of aqueous solution of copper sulphate using copper strips as anode and cathode, the anode reaction is

Cu2++2e−→Cu

Cu→Cu2++2e−

2HO−→H2​+21​O2​+2e−

SO42−​→SO4​+2e−

2HSO4−​→H2​S2​O8​+2e−