Question

Define the terms 'oxidation' and 'reduction'. (b) From the following, identify the substance oxidised and the substancereduced:CuO+H2heat-----Cu+H2O

Answer 1

Oxidation is a reaction in which there is gain of O2 and removal of H2 Reduction is a reaction in which there is removal of O2 and gain of H2 CuO + H2 = Cu +H2O Here, CuO gets reduced to Cu and H2 gets oxidised to H2O