Question

124g of P₄ Will Contain Which of the Following:

(1) 4 Atoms os Phosphorus	(2) 4NA Atoms of Phosphorus
(3) NA Molecules of Phosphorus	(4) 1 Molecule of Phosphorus

(A) 1 and 4

(B) 2 and 3

(C) 1 and 3

(D) 2 and 4

Answer 1

The correct option of this question is B.

Solution : Molecular mass of P₄ = 4 × 31 = 124 amu.

So, 124 g of P₄ contains 1 mole of P₄ = N_A molecules of Phosphorus.

1 mole of P₄ contains 4NA_A atoms of P (Phosphorus).