MCAT Question of the Day
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    Q:

    		 A particular ion, X+, is very harmful to the human body. Which of the following substances would be least harmful if taken orally, given the chemical formulas for the compounds as well as the Ksp values?
    		 

    A

    		 X2S, Ksp=10-21

    B

    		 XCl, Ksp=10-14

    C

    		 XBr, Ksp=10-16

    D

    		 X2S, Ksp=10-23



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