Answer:
Empyrical formula is CH₂
Explanation:
A compound of carbon and hydrogen which has a molar mass of 42 g/m, is the propene, alkene of 3 carbons.
CH₂ == CH --- CH₃
As the molecular formula is C₃H₆, the empyrical formula (which is the simplest chemical formula with the minimum amount in whole numbers between its atoms ) is CH₂
