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  5. The p-block Elements-II / p-ब्लॉक तत्व-II

12th Class Chemistry The p-block Elements-II / p-ब्लॉक तत्व-II Question Bank Case Based (MCQs) - The p Block Elements

  • question_answer
    HF is a weaker acid than HI, because

    A) H-F bond is stronger than HI bond

    B) fluorine is more electronegative than iodine

    C) of the presence of hydrogen bonds in HF

    D) fluorine is a stronger base as compared to iodine.

    Correct Answer: A

    Solution :

    HI is strongest acid because due to largest size of I, the H-I bond is weakest and its bond dissociation energy is least so it breaks most readily and hence HI is the strongest acid. The order of acidic strength is HI > HBr > HCl > HF


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