Teaching BPSC बिहार माध्यमिक TGT (9 to 10) शिक्षक भर्ती 4.0 Mock Test Chemistry Some Basic Concepts of Chemistry
A compound contains 4% hydrogen, 24% carbon and 71% chlorine. Its molar mass is 99 g. Its molecular formula is:
1
CH2Cl
2
C2H2Cl2
3
C2H4Cl2
4
More than one of the above
5
None of the above