Question

In 0.0250, number of the digits expressing the significant number is :

• A. 1
• B. 3
• C. 4
• D. 5

Answer 1

The correct option is B 3

Leading zeros are not significant.

Thus, the number $0.0250$ contains $3$ significant figures.

The digits $2,5$ and $0$ are significant.

Hence, option $B$ is correct.