Residual chlorine after chlorination of water should be Residual chlorine after chlorination of water should be mcq  given below:

Q. Residual chlorine after chlorination of water should be

(a) 1 mg/ L after 1 hr
(b) 1 mg/ L after 1/2 hr
(c) 0.5 mg/ L after 1 hr
(d) 0.5 mg/ L after 1/2 hr

Show Answer
Ans:(c) 0.5 mg/ L after 1 hr
 /

Next Question

Back

Do you Agree with Answer comment below 
Shopping Cart
Scroll to Top