Assertion (A): The standard unit of expressing the mass of atom is amu.
Reason (R ): amu is also called as avogram.

In each of the following question, an Assertion (A) is following by a corresponding Reason (R ). Use the following keys to choose the appropriate answer. Assertion : The standard unit for expressing the mass of atoms is amu. Reason : amu is also called as avogram.

In each of the following two questions two statements are given one labelled as the Assertion(A) or Statement I and the other labelled as the reason (R) or statement II. Examine these statements carefully and mark the correct choice as per following instructions Assertion (A) - The standard unit for expressing the mass of an atom is a.m.u. Reason (R) - a.m.u. is also called avogram

Assertion: The standard unit for expressing the mass of atoms is a.m.u. Reason: a.m.u. stands for mass of 1 atom of carbon.

Mention the mass of ""^(14)N -atom in amu.

Calculate the mass of oxygen atom in amu.

Assetion (A): 1 Avogram is equal to 1 amu. Reason (R ): Avogram is reciprocal of Avogadro's Reason (R ): Avogram is reciprocal of Avogadro's number.