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Railways Sample Paper RRB (Group D) Sample Test Paper-3

  • question_answer
    The most reactive among the halogens is

    A)  Fluorine           

    B)  Chlorine

    C)  Bromine          

    D)  Iodine

    Correct Answer: A

    Solution :

    [a] Fluorine is the most reactive among all halogens. However the reactivity deceases from \[{{F}_{2}}\,to\,{{I}_{2}}\](from top to bottom of group) may be attributed to (1) Low dissociation enthalpies (2) High electron affinities


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