MCQ
The correct order of radii is $……………$
  • A
    $N < Be < B$
  • $F ^{-}< O ^{2-}< N ^{3-}$
  • C
    $Na < Li < K$
  • D
    $Fe^{3+} < Fe^{2+} < Fe^{4+}$

Answer

Correct option: B.
$F ^{-}< O ^{2-}< N ^{3-}$
$F ^{-}< O ^{2-}< N ^{3-}$

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