Question

One gas bleaches the colour of flowers by reduction and another gas by oxidation. The gases respectively are

Answer 1

Chlorine by reduction and sulphur dioxide by oxidation

Answer 2

Sulphur dioxide and chlorine gas are the two gases that bleaches the colour of flower by oxidation and reduction.

Chlorine gas bleaches the colour of flower by oxidation.

Sulphur dioxide bleaches colour of flower by reduction.

Chlorine reacts with water and produces single oxygen atom also called nascent oxygen. This nascent oxygen when combines with any colour makes it colourless.

Sulphur dioxide when reacts with coloured substances it releses oxyden fron the substance resulting in loss of colour.