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

  • question_answer
    The alkali metals have low melting point. Which of the following alkali metal is expected to melt if the room temperature rises to\[30{}^\circ C\]?

    A) Na                   

    B) K

    C) Rb                  

    D) Cs

    Correct Answer: D

    Solution :

    [d] The melting point of alkali metals decreases from Li to Cs as cohesive force decreases with increase in atomic size. Melting point of \[Cs=302Ki.e.,\]\[29{}^\circ C\].


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