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JEE Main & Advanced Chemistry The s-Block Elements / s-ब्लॉक के तत्व Question Bank Self Evaluation Test - The s-Block Elements

  • question_answer
    \[Be{{F}_{2}}\] is soluble in water whereas fluorides of other alkaline earth metals are insoluble because of

    A) ionic nature of \[Be{{F}_{2}}\].

    B) covalent nature of \[Be{{F}_{2}}\].

    C) greater hydration energy of \[B{{e}^{2+}}\] ion as compared to its lattice energy.

    D) none of these.

    Correct Answer: C

    Solution :

    [c] \[B{{e}^{2+}}\]being small in size is heavily hydrated and heat of hydration exceeds the lattice energy. Hence \[Be{{F}_{2}}\] is soluble in water.


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