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BCECE Engineering BCECE Engineering Solved Paper-2002

  • question_answer
    A gas has a vapour density 11.2. The volume occupied by 1 g of gas at NTP is:

    A) 1 L                                          

    B) 11.2 L

    C) 22.4 L                    

    D)        unpredictable

    Correct Answer: A

    Solution :

    Key Idea: (i) Molecular mass \[=2\times \,VD\] (ii) Molecular mass\[~=22.4\text{ }L\] at NTP Given         \[VD=11.2\] mass                      \[~=1\text{ }g\] Molecular mass \[=2\times 11.2\]                                 \[=22.4\] \[\because \] 22.4 g of gas occupies = 22.4 L at NTP \[\therefore \] 1 g of gas occupies \[=\frac{22.4}{22.4}\times 1=1\,L.\]


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