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NEET Sample Paper NEET Sample Test Paper-74

  • question_answer
    What is the empirical formula of a compound having \[40\,%\] carbon, \[6.66\,%\] hydrogen and \[53.34\,\,%\] oxygen?

    A)  \[{{C}_{2}}{{H}_{2}}O\]                   

    B)  \[{{C}_{2}}{{H}_{4}}O\]

    C)  \[C{{H}_{2}}O\]                     

    D)  CHO

    Correct Answer: C

    Solution :

    Atom Atomic Mass [a] Percen-tage [b] \[\frac{b}{a}=x\] Ratio
    C 12 4 3.33 1
    H 1 6.66 6.66 2
    O 16 53.34 3.33 1
    Hence, \[empirical\text{ }formula\,\,=\,\,C{{H}_{2}}O\]


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