JEE Main & Advanced Chemistry Some Basic Concepts of Chemistry / रसायन की कुछ मूलभूत अवधारणाएँ Question Bank Topic Test - Some Basic Concepts of Chemistry (8-5-21)

Approximate atomic weight of an element is 26.89. If its equivalent weight is 8.9, the exact atomic weight of element would be

A) 26.89

B) 8.9

C) 17.8

D) 26.7

Correct Answer: D

Solution :

Atomic weight = Equivalent weight × Valency

\[=8.9\times 3=26.7\]\[\left( \text{Valency}=\frac{\text{26}\text{.89}}{\text{8}\text{.9}}\approx 3 \right)\].