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

  • question_answer
    Photoelectric effect is maximum in  [AFMC 2004]

    A) \[Cs\]

    B) Na

    C) K

    D) Li

    Correct Answer: A

    Solution :

    Group I element are so highly electropositive that they emit electrons even when exposed to light (Photoelectric effect) and this character increase on moving down the group from lithium towards cesium.

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