Assertion (A) : The empirical mass of ethene is half of its molecular mass
Reason (R) : The empirical formula represents the simplest whole number ratio of various atoms present in a compound.

Assertion: Molecular formula shows the exact number of different types of atoms present in a molecule of a compound. Reason : Molecular formula can be obtained directly from empirical formula which represents the simplest whole number ratio of various atoms present in a compound.

The ratio of molecular mass to empirical formula mass for glucose is

Empirical formula of a compound is CH_2O . Its molecular mass is 60. The molecular formula will be

The empirical formula of a compound of molecular mass 120 is CH_(2)O . The molecular formula of the compound is :