Assertion (A): Bromine exists as a molecule of element. Reason (R): Molecules of elements are constituted by two types of atoms.
Assertion (A): Ozone is an example of a molecule of an element.
Reason (R): Molecules formed by different kind of atoms is known as molecule of an element.
Assertion (A) : Ammonia (NH3) is an example of a molecule of an element.
Reason (R) : Molecules formed by same kind of atoms is known as molecule of an element.