(A) Bleaching powder
(B) Slaked lime
(C) Alum
(D) Copper sulphate
(A) Bleaching powder
(B) Slaked lime
(C) Alum
(D) Copper sulphate
| Share this... |
Facebook
|
Twitter
|
Linkedin
|
Whatsapp
|
Your email address will not be published. Required fields are marked *