Some Basic Concepts of Chemistry · Class 11 · CBSE · Science Chemistry
What is the total number of significant figures in the number 0.0025?
Practice question from Some Basic Concepts of Chemistry (Class 11 · CBSE · Science Chemistry), with the correct answer and a step-by-step solution.
easy · MCQ · Q-1EA8F3
What is the total number of significant figures in the number 0.0025?
- A.2Correct answer
- B.4
- C.5
- D.6
Solution
Trailing zeros to the left of the first non-zero digit are not significant. In 0.0025, only the digits 2 and 5 are significant, giving a total of 2 significant figures.
More from Some Basic Concepts of Chemistry
- Calculate the mass percentage of carbon in ethanol (C2H5OH). (Atomic masses: C = 12 text{ g mol}^{-1}, H = 1 text{ g mol}^{-1}, O = 16 text…
- What is the concentration of a solution in molality (m) if 4 text{ g} of NaOH is dissolved in 500 text{ g} of water? (Molar mass of NaOH =…
- An organic compound contains 40% Carbon, 6.67% Hydrogen, and 53.33% Oxygen by mass. What is its empirical formula?
- Calculate the volume occupied by 14 text{ g} of nitrogen gas (N2) at STP.
Practise more Chemistry
Sign up free for adaptive practice on this chapter, with instant feedback and hints on every question.
Start practising freeFree to start · No credit card needed