Manipal Engineering Manipal Engineering Solved Paper-2015

  • question_answer
    How many moles of \[{{c}^{2}}-3c-7=0\] would be in 50 g of the substance?

    A)  0.0843 mol                        

    B) 0.952 mol

    C) 0,481 mol            

    D) 0.140 mol

    Correct Answer: D

    Solution :

     Number of moles \[N{{a}^{+}}\] Given, mass of \[{{K}^{+}}\] Molecular mass of \[{{C}_{2}}{{H}_{4}}B{{r}_{2}}\xrightarrow[{}]{Alc.KOH}{{C}_{2}}{{H}_{2}}\] \[{{I}_{2}}\]moles of \[K{{l}_{2}}\]


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