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JEE Main & Advanced Chemistry Some Basic Concepts of Chemistry / रसायन की कुछ मूलभूत अवधारणाएँ Question Bank Topic Test - Some Basic Concepts of Chemistry (8-5-21)

  • question_answer
    81.4 g sample of ethyl alcohol contains 0.002 g of water. The amount of pure ethyl alcohol to the proper number of significant figures is

    A) 81.398 g

    B) 71.40 g

    C) 91.4 g

    D) 81 g

    Correct Answer: A

    Solution :

    [a] Pure ethyl alcohol \[=81.4-0.002=81.398\].


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