On reaction of sodium hydroxide with calcium ion gives the coloured precipitate. Tell the colour.

Blue

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Pink

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Red

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White

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Solution

The correct option is B White
Calcium ions $C a^{2 +}$ react with sodium hydroxide to form white coloured precipitates of calcium hydroxide.
$C a^{2 +} + 2 O H^{-} \to C a (O H)_{2} (s)$

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