Question

Which of the following statements about the reaction below are incorrect? CO₂ + H₂⟶ CO + H₂O (i) Carbon dioxide is getting reduced. (ii) Hydrogen is getting oxidised. (iii) Carbon monoxide is getting oxidised. (iv) Water is getting reduced.

Answer 1

Answer:

Explanation: Oxidation is the reaction in which the substance gains oxygen atom or loses hydrogen atom while reduction reaction is the reaction in which the substance gains hydrogen atom or lose oxygen atom.

In the given reaction, carbon dioxide gas reacts with hydrogen gas to form carbon monoxide gas and water. Here, carbon dioxide losing oxygen atom to form carbon monoxide. So, carbon dioxide is reduced here. Hydrogen gas accepting oxygen atom to form water. So, hydrogen gas is oxidized here.

Hence, the correct answer is (ii) Hydrogen is getting oxidized.