In the purification of portable water the coagulant used is_________________?
(A) alum
(B) nickel sulphate
(C) copper sulphate
(D) barium sulphate
Share this... |
![]() Facebook
|
![]() Twitter
|
![]() Linkedin
|
![]() Whatsapp
|
Your email address will not be published. Required fields are marked *