$K_{2} C O_{3} (a q) + C a (O H)_{2} (a q) \to C a C O_{3} (s) + 2 K O H (a q)$

The above reaction is an example of reaction and the precipitate formed in this reaction is .

K O H

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decomposition

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double displacement

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C a C O_{3}

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Solution

The correct options are
C double displacement
D $C a C O_{3}$
The given reaction is a double displacement reaction since the reactants $K_{2} C O_{3}$ and $C a (O H)_{2}$ are exchanging their ions $C O_{3}^{2 -}$ and $O H^{-}$ with each other in order to form $C a C O_{3}$ and $K O H$ as products.

This is also a precipitation reaction since the $C a C O_{3}$ formed here is an insoluble white coloured precipitate.

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