Q11 / 125 · BITSAT 2014 · Chemistry

Which of the following among alkalimetal is most reactive?

  • A
    $\mathrm{Na}$
  • B
    $\mathrm{K}$
  • C
    $\mathrm{Rb}$
  • Correct answer
    D
    $\mathrm{Cs}$

Solution

Amongst alkali metals, Cs is most reactive because of its lowest IE.

Hence, the correct answer is option: 'D'.

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