Question

Collect information on any two chemically made dye commonly seen in U.P. and Meghalaya ,what colours do they give, constituents of chemicals present in them, how are they prepared in lab etc.

Answer 1

Collect information on any two chemically made dye commonly seen in U.P. and Meghalaya ,what colours do they give, constituents of chemicals present in them, how are they prepared in lab etc.