The most commonly used disinfection of swimming pool water is by -
(a) alum
(b) nitrogen
(c) lime
(d) chlorine.
The correct Answer Is
(d) chlorine
(a) alum
(b) nitrogen
(c) lime
(d) chlorine.
The correct Answer Is
(d) chlorine
The most commonly used disinfection of swimming pool water is by -
- Thread starter Dnyan Deshmukh
- Start date
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