Question

(a) Write formula of bleaching powder. Explain its bleaching process.
(b) Draw labeled diagram of chemical reaction of Zn metal with dilute H2S04. [4]

Answer 1

Answer:

Ca(ClO)2

Bleaching is the second steps of pretreatment of textile materials as well as wet processing technology. Bleaching process can be defined as; the destruction of natural coloring matter from the textile materials in order to achieve a clean white end product. Different types of bleaching agent use during bleaching.