When 50 % solution of H 2 SO 4 is electrolysed by passing a current of high density at low temperature then main products of electrolysis are

Question

When 50 % solution of H 2 SO 4 is electrolysed by passing a current of high density at low temperature then main products of electrolysis are (A) Oxygen and Hydrogen (B) H 2 and peroxy disulphuric acid (C) H 2 and SO 2 (D) O 2 and peroxy disulphuric acid

Tardigrade Admin · Accepted Answer

2 H 2 SO 4 longrightarrow 2 H ++2 HSO 4- 2 H ++2 e - longrightarrow H 2 uparrow 2 HSO 4- longrightarrow underset textPeroxy disulphuric acidH 2 S 2 O 8+2 e ominus

Q. When $50%$ solution of $H_{2} S O_{4}$ is electrolysed by passing a current of high density at low temperature then main products of electrolysis are

Oxygen and Hydrogen

$H_{2}$ and peroxy disulphuric acid

$H_{2}$ and $S O_{2}$

$O_{2}$ and peroxy disulphuric acid

$2 H_{2} S O_{4} ⟶ 2 H^{+} + 2 H S O_{4}^{-}$
$2 H^{+} + 2 e^{-} ⟶ H_{2} ↑$
$2 H S O_{4}^{-} ⟶ Peroxy disulphuric acid H_{2} S_{2} O_{8} + 2 e^{⊖}$

Q. When 50% solution of H2​SO4​ is electrolysed by passing a current of high density at low temperature then main products of electrolysis are

Oxygen and Hydrogen

H2​ and peroxy disulphuric acid

H2​ and SO2​

O2​ and peroxy disulphuric acid

2H2​SO4​⟶2H++2HSO4−​ 2H++2e−⟶H2​↑ 2HSO4−​⟶Peroxy disulphuric acidH2​S2​O8​+2e⊖​

Q. When $50%$ solution of $H_{2} S O_{4}$ is electrolysed by passing a current of high density at low temperature then main products of electrolysis are

$H_{2}$ and peroxy disulphuric acid

$H_{2}$ and $S O_{2}$

$O_{2}$ and peroxy disulphuric acid

$2 H_{2} S O_{4} ⟶ 2 H^{+} + 2 H S O_{4}^{-}$
$2 H^{+} + 2 e^{-} ⟶ H_{2} ↑$
$2 H S O_{4}^{-} ⟶ Peroxy disulphuric acid H_{2} S_{2} O_{8} + 2 e^{⊖}$