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JEE Main & Advanced Chemistry States of Matter / पदार्थ की अवस्थाएँ - गैस एवं द्रव Question Bank Critical Thinking

  • question_answer
    A gas is found to have a formula\[{{[CO]}_{x}}\]. If its vapour density is 70, the value of \[x\] is                  [DCE 2004]

    A)                 2.5         

    B)                 3.0

    C)                 5.0         

    D)                 6.0

    Correct Answer: C

    Solution :

               M. wt. = V.d. ´ 2                                 = 70 ´ 2 = 140 Þ \[x=\frac{m.wt.}{wt.of[CO]}=\frac{140}{\left[ 12+16 \right]}=5\]


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