Question

assertion : what does not react with H2so4 (dilute).
reason : copper copper is more reactive than hydrogen
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Answer 1

ANSWER

HII

Explanation:

Copper does not react with dilute sulphuric acid, liberating hydrogen because copper is lower in electromotive series than hydrogen, or more fundamentally, because the magnitude of change in gibbs free energy when a single atom of elemental hydrogen ionizes is greater than the magnitude of the change in gibbs free energy when a single atom of elemental copper ionizes. Therefore , elemental copper does not have a sufficient chemical potential to liberate elemental hydrogen from compounds in which hydrogen has a oxidation state of +1.

Both A and R are correct R is not the explanation ofA