$MgO$ reacts with water to form

{MgH}_{2}

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{MgCO}_{3}

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{Mg(OH)}_{2}

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Solution

The correct option is C ${Mg(OH)}_{2}$
Metal oxides react with water to form metal hydroxides.
Here, magnesium oxide reacts with water to give magnesium hydroxide. The reaction takes place as follows:

$MgO (s) + H_{2} O (aq) \to {Mg(OH)}_{2} (aq)$

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