NEET2020Chemistry-Mole Concept

NEET 2020 Chemistry Counting Atoms MCQ Question

Type: MCQ-numerical-Medium-Class 11

Which one of the followings has maximum number of atoms?

A

1 g of O₂(g) [Atomic mass of O = 16]

B

1 g of Li(s) [Atomic mass of Li = 7]

C

1 g of Ag(s) [Atomic mass of Ag = 108]

D

1 g of Mg(s) [Atomic mass of Mg = 24]

Correct Answer

Option B

Detailed Explanation

The number of atoms is calculated by dividing the mass by the atomic mass and multiplying by Avogadro's number. Li has the smallest atomic mass, resulting in the highest number of atoms.

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