Explain the following in terms of gain or loss of Oxygen with one example each:
(i) Oxidation (ii) reduction
(b) When copper powder is heated strongly in air, it forms copper oxide. Write a balanced chemical equation for this reaction. Name (i) substance oxidised, and (ii) substance reduced

Question

Explain the following in terms of gain or loss of Oxygen with one example each:
(i)	Oxidation (ii) reduction
(b) When copper powder is heated strongly in air, it forms copper oxide. Write a balanced chemical equation for this reaction. Name (i) substance oxidised, and (ii) substance reduced

MyClass24 · Accepted Answer

(a) Oxidation is addition of oxygen and reduction is removing of oxygen H2S + Cl2&rarr; S + 2HCl
Here, hydrogen is removed from hydrogen sulphide so it is oxidation and hydrogen sulphide is oxidized to sulphur.
(b) 2Cu + O2 &rarr; 2Cu0
(i) Cu is oxidized (ii) O2is reduced

Explain the following in terms of gain or loss of Oxygen with one example each: (i) Oxidation (ii) reduction (b) When copper powder is heated strongly in air, it forms copper oxide. Write a balanced chemical equation for this reaction. Name (i) substance oxidised, and (ii) substance reduced