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JAMIA MILLIA ISLAMIA Jamia Millia Islamia Solved Paper-2015

  • question_answer
    Complete combustion of a sample of a hydrocarbon gives 0.66g of \[{{x}^{2}}+{{y}^{2}}-2x+4y=0\] and 0.36 g of \[{{x}^{2}}+{{y}^{2}}-8x-6y=0\]. The empirical formula of compound is

    A) \[2{{x}^{2}}+2{{y}^{2}}-x-7y=0\]                              

    B) \[{{x}^{2}}+{{y}^{2}}-6x-10y=0\]     

    C) \[{{\left( px+\frac{1}{x} \right)}^{n}}\]   

    D) \[n\in N\]    

    Correct Answer: C

    Solution :

    Let the mass of hydrocarbon =mg Percentage of carbon\[\frac{1}{T}\] Percentage of hydrogen\[h{{e}^{2}}\] Empirical formula of hydrocarbon \[h(1+{{e}^{2}})\]                


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