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ICSE Class 10 Chemistry Question 13 of 60

Electrolysis — Question 23

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Question

Question 23

Assertion (A): Oxidation occurs at the anode.

Reason (R): Electrons are gained at the anode.

  1. Both A and R are true and R is the correct explanation of A.
  2. Both A and R are true but R is not the correct explanation of A.
  3. A is true but R is false.
  4. A is false but R is true.
Answer

A is true but R is false.

Explanation — The reaction at anode involves oxidation of anions as they lose electrons to become neutral. Hence the assertion (A) is true.
Electrons are donated or lost at the anode. However, gain of electrons takes place at cathode, where cations are reduced. Hence the reason (R) is false.