Question

what is redox reaction? identify the substance oxidised and the substance reduced in the following reactions. (i)2pbo + c —–> 2pb + co2 (ii)mno2 + 4hcl —–> mncl2 + 2h20 + cl​

Answer 1

Oxidation-reduction reaction, also called redox reaction, any chemical reaction in which the oxidation number of a participating chemical species changes.

i. Infirst reaction, lead oxide gets reduced and carbon gets oxidised.

ii. Insecond reaction, HCl gets oxidised and MnO2 gets reduced.