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

Chlorine gas is used in the manufacture of:

1
Baking powder
2
Baking soda
3
Bleaching powder
4
More than one of the above
5
None of the above

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