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BVP Medical BVP Medical Solved Paper-2015

  • question_answer
    Find out the change in entropy when two gram atoms of aluminium is heated from \[HCl>HBr>Hl\] to \[HBr>Hl>HCl\]. The atomic heat capacity of aluminium is given by (\[Hl>HBr>HCl~\] T cal/deg)

    A)  \[Hl>HCl>HBr\]               

    B)  \[C{{H}_{3}}Mgl+C{{H}_{3}}CHOHC{{H}_{3}}\]

    C)  \[C{{H}_{3}}Mgl+C{{H}_{3}}COC{{H}_{3}}\]                        

    D)  \[C{{H}_{3}}C{{H}_{2}}MgBr+C{{H}_{3}}CHO\]

    Correct Answer: B

    Solution :

                                    The process takes place at constant pressure. Thus,    \[Cr(II)\] and \[\sigma \] \[{{C}_{2}}{{H}_{5}}OH+HX\xrightarrow{Zn{{X}_{2}}}{{C}_{2}}{{H}_{5}}X,\] \[HCl>HBr>Hl\] \[HBr>Hl>HCl\]


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