You visited us 1 times! Enjoying our articles? Unlock Full Access!

Stoichiometry

In which of t...

Question

In which of the following reactions does sulphurous acid function as an oxidising agent?

H_{2} {S O}_{3} + {B r}_{2} + H_{2} O \to H_{2} {S O}_{4} + 2 H B r

No worries! We‘ve got your back. Try BYJU‘S free classes today!

5 H_{2} {S O}_{3} + 2 K I O_{3} \to I_{2} + 4 H_{2} {S O}_{4} + H_{2} O + K_{2} {S O}_{4}

No worries! We‘ve got your back. Try BYJU‘S free classes today!

H_{2} {S O}_{3} + 2 H_{2} S \to 3 H_{2} O + 3 S

Right on! Give the BNAT exam to get a 100% scholarship for BYJUS courses

H_{2} {S O}_{3} + 2 F e {C l}_{3} + H_{2} O \to H_{2} {S O}_{4} + 2 F e {C l}_{2} + 2 H C l

No worries! We‘ve got your back. Try BYJU‘S free classes today!

Open in App

Solution

The correct option is C $H_{2} {S O}_{3} + 2 H_{2} S \to 3 H_{2} O + 3 S$
In $H_{2} S O_{3} + 2 H_{2} S \to 3 H_{2} O + 3 S$ reaction, $H_{2} S O_{3}$ acts as oxidising agent. In this reaction $H_{2} S$ is oxidised and converted into sulphur by using $H_{2} S O_{3}$ .
So, answer is C.

Suggest Corrections

Similar questions

K_{2} {C r}_{2} O_{7} + K I + H_{2} {S O}_{4} \to K_{2} {S O}_{4} + {C r}_{2} {({S O}_{4})}_{3} + I_{2} + H_{2} O

K M n O_{4} + {N a}_{2} {S O}_{3} \to M n O_{2} + {N a}_{2} {S O}_{4} + K O H

C u + H {N O}_{3} \to C u {({N O}_{3})}_{2} + {N O}_{2} + H_{2} O

K M {n O}_{4} + H_{2} C_{2} O_{4} + H_{2} {S O}_{4} \to K_{2} {S O}_{4} + {M n S O}_{4} + {C O}_{2} + H_{2} O

S + O_{2} \to {S O}_{2}; △ H = - 298.2 k J

{S 0}_{2} + 1 / 20_{2} \to {S O}_{3}; △ H = - 98.7 k J

S O_{3} + H_{2} O \to H_{2} {S O}_{4}; △ H = - 130.2 k J

H_{2} + 1 / 20_{2} \to H_{2} O; △ H = - 287 k J

H_{2} {S O}_{4}

S + O_{2} \to {S O}_{2}; Δ H = - 298.2 k J

{S O}_{2} + \frac{1}{2} O_{2} \to S O_{3}; Δ H = - 98.7 k J

{S O}_{3} + H_{2} O \to H_{2} {S O}_{4}; Δ H = - 130.2 k J

H_{2} + \frac{1}{2} O_{2} \to H_{2} O; Δ H = - 227.3 k J

H_{2} {S O}_{4}

S + O_{2} \to {S O}_{2}; △ H = - 398.2 k J : {S O}_{2} + \frac{1}{2} O_{2} \to {S O}_{3}; △ H = - 98.7 k J

{S O}_{3} + H_{2} O \to H_{2} {S O}_{4}; △ H = - 130.2 k J : H_{2} + \frac{1}{2} O_{2} \to H_{2} O, △ H = - 227.3 k J

H_{2} {S O}_{4}

(a) H_{2} {S O}_{4} + N a O H \to N a H {S O}_{4} + H_{2} O

(b) H_{2} {S O}_{4} + 2 N a O H \to {N a}_{2} {S O}_{4} + 2 H_{2} O

Join BYJU'S Learning Program