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NEET Sample Paper NEET Sample Test Paper-90

  • question_answer
    Vapour density of the equilibrium mixture of the reaction \[S{{O}_{2}}C{{l}_{2(g)}}S{{O}_{2(g)}}+C{{l}_{2(g)}}\] is 50.0. Percent dissociation of \[S{{O}_{2}}C{{l}_{2}}\] is:

    A) 33.33   

    B)        35.0  

    C) 30.0                 

    D)         66.67

    Correct Answer: B

    Solution :

    [b] \[S{{O}_{2}}C{{l}_{2}}(g)S{{O}_{2}}(g)+C{{l}_{2}}(g)\]  \[\alpha \,%=\frac{D-d}{d(y-1)}\times 100\] (y=2) \[D=\frac{\text{molar mass of}\,S{{O}_{2}}C{{l}_{2}}}{2}=\frac{135}{2}=67.5;\] \[d=50.0(\text{given})\] \[\alpha \,%=\frac{67.5-50.0}{50.0(2-1)}\times 100=35%\]


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