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.

Question

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.

MyClass24 · Accepted Answer

Oxidation is removal of hydrogen and reduction is gaining of hydrogen. By taking an example Fe2O3 + 3CO &rarr; 2Fe + 3CO2
Fe got reduced here and Carbon got oxidized by gaining oxygen
(b) 2Mg + O2&rarr; 2MgO
(i) Substance oxidized is Mg (ii) Substance reduced is O2