On electrolysis of aqueous ${A s}_{2} S_{3}$ sol, using inert electrode:

the coagulation of particles of dispersed phase occur near cathode

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as will deposit at cathode

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sulphur will deposit at cathode

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H_{2}

gas will evolve at cathode

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Solution

The correct option is A the coagulation of particles of dispersed phase occur near cathode
${A s}_{2} S_{3}$ aqueous solution is a colloid which on electrolysis produce coagulated particles of ${A s}_{2} S_{3}$ solution of dispersed phase settle near cathode because it is negatively charged colloid.

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Similar questions

Match the following:

List-I

A) Electrolysis of aq. sol. of $N a_{2} S O_{4}$ by using inert electrodes.

B) Electrolysis of 50% $H_{2} S O_{4}$ using Pt electrodes.

C) Electrolysis of Aq. sol. of $A g N O_{3}$ using inert electrodes.

D) Electrolysis of aq. $A g N O_{3}$ using silver electrodes.

List-II

1) Ag at cathode $O_{2}$ at anode

2) $H_{2}$ at cathode $O_{2}$ at anode

3) $H_{2}$ at cathode $H_{2} S_{2} O_{8}$ at anode

4) $A g^{+} + e^{-} \to A g$
$A g \to A g^{+} + e^{-}$

Q. Which gas is evolved at cathode on electrolysis of aqueous sodium sulphate using platinum electrodes?

On electrolysis of dilute copper(II) sulphate solution, copper is deposited at the cathode but hydrogen gas evolves there.

Q. During electrolysis of an aqueous solution of

C u S O_{4}

using copper electrodes, if 2.5 g of Cu is deposited at cathode, then at anode:

Which of the following statements are correct?

a) The electrolysis of aqueous NaCl produces hydrogen gas at the cathode and chlorine gas at the anode .

b) The electrolysis of a $C u S O_{4}$ solution using Pt electrodes causes the liberation of $O_{2}$ at the anode and the deposition of copper at the cathode .

c) Oxygen and hydrogen are produced at the anode and cathode during the electrolysis of dilute aqueous solution of $H_{2} S O_{4}$ .

d) All electrolytic reactions are redox reactions .

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On electrolysis of aqueous As2S3 sol, using inert electrode:

The correct option is A the coagulation of particles of dispersed phase occur near cathodeAs2S3 aqueous solution is a colloid which on electrolysis produce coagulated particles of As2S3 solution of dispersed phase settle near cathode because it is negatively charged colloid.

On electrolysis of aqueous ${A s}_{2} S_{3}$ sol, using inert electrode: