Question

Which of the following have least number of atoms :

$(1) 5.6 l \: NH_{3}$

$(2) 4g \: O_{2}$
$(3) 3.01 × 10²² \: moles \: of H_{2} SO_{4}$
$(4) 2.24 g \: of \: H_{2} \: gas$
I want complete solution..​

Answer 1

Answer:

option 2

Explanation:

4g oxygen means 1/8 Mole of oxygen

and 1 oxygen molecule have 2 oxygen atoms.

than total is 1/4 ×Na atoms In 2gm of oxygen gas..