Teaching BPSC बिहार माध्यमिक TGT (9 to 10) शिक्षक भर्ती 4.0 Mock Test General Science Chemistry Organic Chemistry
Formic acid can reduce:
1
Tollen's reagent
2
Mercuric chloride
3
Potassium permanganate
4
More than one of the above
5
None of the above