Question

(a) Define the following in terms of gain or loss of hydrogen with one example each :
(i) oxidation (ii) reduction
(b) When a magnesium ribbon is heated, it burns in air to form magnesium oxide. Write a balanced chemical equation for this reaction. Name (i) substance oxidised, and (ii) substance reduced.

Lakhmir Singh Chemistry Class 10

Answer 1

a) i= oxidation : loss of hydrogen
Reduction : gain of hydrogen
b) 2Mg + O2 = 2MgO
i) Mg is being oxidised
ii) O2 is reduced

Answer 2

The

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answer

to the question