JEE Main & Advanced Chemistry Alkali Metals Question Bank Alkali Metals

  • question_answer Which of the following reacts with water with high rate [AFMC 1995]

    A) \[Li\]

    B) \[K\]

    C) \[Na\]

    D) \[Rb\]

    Correct Answer: D

    Solution :

    \[2Rb+2{{H}_{2}}O\,\to \,2RbOH+{{H}_{2}}\] \[\xrightarrow{Li<Na<K<Rb<Cs}\] As we go down the group reactivity with \[{{H}_{2}}O\] increases.


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