Sail E0 Webinar
Question
The permissible limit of free residual chlorine is ___________
Options:
A .  0.02ppm
B .  0.2ppm
C .  1ppm
D .  2ppm
Answer: Option B
Answer: (b).0.2ppm

Was this answer helpful ?
Next Question

Submit Solution

Your email address will not be published. Required fields are marked *

Latest Videos

Latest Test Papers