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BVP Medical BVP Medical Solved Paper-2010

  • question_answer
    The heats of neutralisation of four acids A, B, C and D when neutralised against a common base are 13.7, 9.4, 11.2 and 12.4 kcal respectively. The weakest among these acids is

    A)  A                                           

    B)  B

    C)  C                                           

    D)  D

    Correct Answer: B

    Solution :

                    In case of weak acids, some of the heat evolved during neutralisation reaction is utilised to ionise the weak acid. Thus, less heat is evolved. Hence,  lower  the  value  of heat of neutralisation, weaker is the acid. Thus, B is the weakest acid.


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