Q18 / 160 · AP EAMCET 2021 (23 Aug Shift 1) · Chemistry

Alkali metals are powerful reducing agents because

  • A
    they are metals
  • B
    they are monovalent
  • C
    their ionic radii are large
  • Correct answer
    D
    their ionisation energies are low

Solution

Alkali metals have only one valence electron in their outermost shell. They loose one valence electron easily due to low ionisation enthalpy and get oxidised to reduces other compounds.

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

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