A compound contains 4.07% hydrogen, 24.27% carbon and 71.65% chlorine. Its molar mass is 98.96 g. Its empirical and molecular formulas are respectively -

1. CH₂Cl and C₂H₄Cl₂

2. CH₃Cl and C₂H₆Cl₂ 

3. C₂HCl and C₄H₂Cl₂ 

4. C₂HCl and C₂H₄Cl₂