JCECE Engineering JCECE Engineering Solved Paper-2009

  • question_answer
    The shape of \[PC{{l}_{3}}\] molecule is

    A)  trigonal bipyramidal

    B)  tetrahedral

    C)   pyramidal

    D)   square planar

    Correct Answer: C

    Solution :

    \[k=\frac{2.303}{t}\log \frac{{{A}_{0}}}{A}\]                 \[=\frac{2.303}{40}\log \frac{0.1}{0.005}\]                 \[=\frac{2.303}{40}\log 20=0.075\]


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