The ionic compound $C a (O H)_{2}$ on dissociation will give cation X. The charge on this on cation is ___.

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Solution

The correct option is B 2
The dissociation reaction is given as: $C a (O H)_{2} (a q) ⟶ C a^{2 +} + 2 O H^{-}$ So, the cation is $C a^{2 +}$ and anion is $O H^{-}$ .

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