JEE Main & Advanced Chemistry Some Basic Concepts of Chemistry Question Bank Significant figures Units for measurement

  • question_answer A sample was weighted using two different balances. The result?s were (i) 3.929 g (ii) 4.0 g. How would the weight of the sample be reported

    A)                 3.929 g  

    B)                 3 g

    C)                 3.9 g      

    D)                 3.93 g

    Correct Answer: D

    Solution :

               Round off the digit at 2nd position of decimal 3.929             = 3.93.

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