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AMU Medical AMU Solved Paper-2006

  • question_answer
    A gas is found to have the formula \[{{(CO)}_{n}}\]. If its vapour density is 56, the value of n will be

    A)  7                                            

    B)  5

    C)  4                                            

    D)  3

    Correct Answer: C

    Solution :

                     Mol. wt. \[=2\times 56=112\]                 \[{{(CO)}_{n}}=112\]                 \[{{(12+16)}_{n}}=112\] \[\therefore \]  \[28n=112\]                 \[n=\frac{112}{28}=4\]


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