Teaching BPSC बिहार माध्यमिक TGT (9 to 10) शिक्षक भर्ती 4.0 Mock Test General Science Chemistry Chemistry in Everyday Life

The nonmetal used in disinfecting water is

1

Chlorine

2

Bromine

3

Iodine

4

More than one of the above

5

None of the above

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