MCAT Question of the Day
    •

    Q:

    		 Rank the following elements in increasing order of their reactivity with fluorine.

    I. Potassium
    II. Calcium
    III. Iron
    		 

    A

    		 I < II < III

    B

    		 III < II < I

    C

    		 I < III < II

    D

    		 III < I < II



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