Which of the following pair has same number of atoms?

Question

A. 1 g CO2 and 1g SO2

B. 1 g NH3 and 1 g PH3

C. 1g O2 and 1 g O3

D. 1 g CO and 1g NO

Answer 1

We know that all gases contains 22.4 L volume

22.4 liter of SO₂ = 6.223x10²³ atoms
so for 1 liter= (6.223x10²³)/22.4 = Same for 1 litre of CO₂.

So, Number of atoms for 1 gram of SO₂ = Number of atoms 1 gram of CO₂

Hence option (A) is correct

Comments

Even O2 and O3 are gases why not them