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NEET Sample Paper NEET Sample Test Paper-23

  • question_answer
                The half-life of a first order reaction having a rate constant\[k=1.7\times {{10}^{-5}}\]is

    A)   10.1 h                       

    B)  7.9 h

    C)   11.3h                        

    D)  8.0 h

    Correct Answer: C

    Solution :

    \[k=1.7\times {{10}^{-5}}{{s}^{-1}}\] \[{{t}_{1/2}}=\frac{0.693}{k}\] \[=\frac{0.693}{1.7\times {{10}^{-5}}}\] \[=11.3\,h.\] Hence, the correct option is [c].


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