MCQ
In the compound $M - O - H$, the $M - O$ bond will be broken if
  • A
    $\Delta \,(E.N.)$ of $M$ and $O < \Delta \,(E.N.)$ of $O$ and $H$
  • B
    $\Delta \,(E.N.)$ of $M$ and $O = \Delta\, (E.N.)$ of $O$ and $H$
  • $\Delta \,(E.N.)$ of $M$ and $O > \Delta \,(E.N.)$ of $O$ and $H$
  • D
    Cannot be predicated according $\Delta \,(E.N.)$ data

Answer

Correct option: C.
$\Delta \,(E.N.)$ of $M$ and $O > \Delta \,(E.N.)$ of $O$ and $H$
c
If electronegativity difference of $M - O$ is greater than $O - H$, then $M - O$ bond will be broken and $M ^{+}$ and $OH ^{-}$ions will form.

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