Question

During the polymerisation of polyaniline, the sequence of the colour change is ____________

(a) Green >> copper tint >> blue green >> light blue

(b) Light blue >> blue green >> copper tint >> green

(c) Copper tint >> blue green >> green >> light blue

(d) Blue green >> green >> light blue >> copper tint

The question was asked in final exam.

The above asked question is from Organic Conducting Polymers topic in section Polymers of Engineering Chemistry I

Answer 1

The correct option is (b) Light blue >> blue green >> copper tint >> green

To explain I would say: During the polymerisation of polyaniline, the sequence of the colour change is Light blue >> blue green >> copper tint >> green.