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BITSAT2009ChemistrySome Basic Concepts of ChemistryActual

Given the numbers : 161 ~cm , 0.161 ~cm , 0.0161 ~cm . The number of significant figures for the three numbers are

Options

  1. A3,4 and 5 respectively
  2. B3,3 and 4 respectively
  3. C3,3 and 3 respectively
  4. D3,4 and 4 respectively

Correct answer

C. 3,3 and 3 respectively

Step-by-step solution

Each has three significant figures. When zero is used to locate the decimal point, it is not considered as significant figure.

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