Question

$1$ gm-atom of nitrogen molecule represents:

• A. $6.02\times {10}^{23}{N}_2$ molecules
• B. $44.8$ lit. of $N_2$ at N.T.P.
• C. $11.2$ lit. of $N_2$ N.T.P.
• D. $14$ gm of nitrogen

Answer 1

The correct option is A $6.02\times {10}^{23}{N}_2$ molecules

$1$ gram- atom of nitrogen corresponds to the mass of one mole of the nitrogen atom in grams that is one gram -atom of nitrogen represents 28 gms of nitrogen.

It is also equal to 6.023 x 10${}^{23}$ $N_2$ molecules.