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Standard X

Chemistry

Electrolytic Dissociation

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Question

Give the products available on the cathode and the anode respectively during the electrolysis of an aqueous solution of $M g {S O}_{4}$ between inert electrodes:

H_{2} (g)

and

O_{2} (g)

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O_{2} (g)

and

H_{2} (g)

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O_{2} (g)

and

{M g}_{2} (g)

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O_{2} (g)

and

{S O}_{2} (g)

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Solution

The correct option is A $H_{2} (g)$ and $O_{2} (g)$
During the electrolysis of an aqueous solution of $M g {S O}_{4}$ between inert electrodes, the products available on the cathode and the anode are $H_{2} (g)$ and $O_{2} (g)$ respectively.

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Similar questions

Q. Which of the following will give

H_{2} (g)

at cathode and

O_{2} (g)

at anode on electrolysis using platinum electrodes ?

Q. Products of electrolysis of dilute

H_{2} S O_{4}

solution are:

In the electrolysis of $N a_{2} S O_{4}$ solution using inert electrode

a) the anodic reaction is

$2 H_{2} O \to O_{2} (g) + 4 e^{-} + 4 H^{+}$

b) $H_{2} (g)$ and $O_{2} (g)$ is produced in a molar ratio of 2:1

c) 23 grams of sodium is produced at the cathode

d) the cathode reaction is $N a^{+} + e^{-} \to N a$

Q. In a hydrogen oxygen fuel cell, electricity is produced. In this process

H_{2} (g)

is oxidised at anode and

O_{2} (g)

reduced at cathode. Given : Cathode:

O_{2} (g) + 2 H_{2} O (l) + 4 e^{-} \to 4 O H^{-} (a q)

Anode :

H_{2} (g) + 2 O H^{-} (a q) \to 2 H_{2} O (l) + 2 e^{-}

4.48 L

H_{2}

1 atm

and

273 K

is oxidised in

9650 sec

.
If current produced in fuel cell, use for the deposition of

C u^{2 +}

1 L

2 M C u S O_{4} (aq)

solution for

241.25 sec

using

P t

electrode. The

p H

of solution after electrolysis is:

Q. In a hydrogen oxygen fuel cell, electricity is produced. In this process

H_{2} (g)

is oxidised at anode and

O_{2} (g)

reduced at cathode.
Given : Cathode:

O_{2} (g) + 2 H_{2} O (l) + 4 e^{-} \to 4 O H^{-} (a q)

Anode :

H_{2} (g) + 2 O H^{-} (a q) \to 2 H_{2} O (l) + 2 e^{-}

4.48 L

H_{2}

1 atm

and

273 K

is oxidised in

9650 sec

.
The current produced is (in amp):

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Give the products available on the cathode and the anode respectively during the electrolysis of an aqueous solution of MgSO4 between inert electrodes:

The correct option is A H2(g) and O2(g)During the electrolysis of an aqueous solution of MgSO4 between inert electrodes, the products available on the cathode and the anode are H2(g) and O2(g) respectively.

Give the products available on the cathode and the anode respectively during the electrolysis of an aqueous solution of $M g {S O}_{4}$ between inert electrodes:

The correct option is A $H_{2} (g)$ and $O_{2} (g)$
During the electrolysis of an aqueous solution of $M g {S O}_{4}$ between inert electrodes, the products available on the cathode and the anode are $H_{2} (g)$ and $O_{2} (g)$ respectively.