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Electrolysis in Chemistry - SSC CGL 2020 Questions & Answers (Urdu) - ObjectiveMcq

SSC CGL 2020

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Subjects

Chemistry1 Physics1

Topics

Electrochemistry
- Electrolysis

HomeExamSSC CGL2020ChemistryElectrochemistryElectrolysis

SSC CGL 2020, Chemistry, Electrolysis - Questions and Answers

Browse the questions, answers and explanations for Electrolysis in Chemistry, SSC CGL 2020.

1 questions · Page 1 of 1

SSC CGL 2020 Chemistry Electrochemistry

1.

During electrolysis of water, which gas is produced at the cathode?

A

Oxygen

B

Chlorine

C

Hydrogen

D

Nitrogen

View Answer

Correct Answer: C — Hydrogen

Explanation:

At the cathode (negative electrode), reduction occurs: $2H^+ + 2e^- \rightarrow H_2$ . So hydrogen is produced.

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