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Question

Oxidation in a redox reaction involves which of the following?

This question was previously asked in
RRB NTPC 2025 Under Graduate CBT 1 Question Paper PDF (20-Jun-2026) (Shift 3)
The correct answer is

Electrons lost

A redox reaction is a coupled process in which one species is oxidised while another is simultaneously reduced through transfer of electrons.

By the electronic definition, oxidation is the loss of electrons by an atom, ion or molecule, which raises its oxidation number.

The mnemonic OIL RIG summarises this idea: Oxidation Is Loss of electrons, Reduction Is Gain of electrons.

Protons, being nuclear particles, are not exchanged in ordinary chemical redox reactions.

Hence, oxidation in a redox reaction involves the loss of electrons.

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Similar Questions

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Important Questions from Chemical Reaction

  1. An iron nail dipped in copper sulphate solution turns brown. This is due to which one of the following types of reactions?

  2. Copper sulphate crystals available in the market are blue coloured crystals. By careful heating, they turn to white colour. Which one of the following is responsible for the blue colour?

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