Easy MCQ +4 / -1 PYQ · JEE Mains 2022

Using the rules for significant figures, the correct answer for the expression ${{0.02858 \times 0.112} \over {0.5702}}$ will be

  1. A 0.005613
  2. B 0.00561 Correct answer
  3. C 0.0056
  4. D 0.006

Solution

<p>${{0.02858 \times 0.112} \over {0.5702}}$ = 0.00561</p> <p>Reported answer should not be more precise than least precise term (0.112 is the least precise term with three significant figures) in calculations, so there should be three significant figures in reported answer.</p>

About this question

Subject: Chemistry · Chapter: Some Basic Concepts of Chemistry · Topic: Mole Concept

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