When magnesium oxide reacts with hydrochloric acid it forms:

in water

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in water

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Both and in water.

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in acid medium

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Solution

The correct option is A
in water

Magnesium oxide is an insoluble base, the basic oxide will react with a dilute acid to produce a soluble salt $(M g C l_{2})$ and water $(H_{2} O)$ .

$M g O + 2 H C l \to M g C l_{2} + H_{2} O$

This is a neutralization reaction, as the acidity of HCl is been neutralized by MgO.

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Similar questions

Write the balanced equations for the following reactions, and add the state symbols :

(a) Magnesium carbonate reacts with hydrochloric acid to produce magnesium chloride, carbon dioxide and water.

(b) Sodium hydroxide reacts with sulphuric acid to produce sulphate and water

From the metals: copper, iron,magnesium, sodium, and zinc, select a different metal in each case which:

(a) does not react with dilute hydrochloric acid,

(b) can form $2^{+}$ and $3^{+}$ ions,

(d) does not react with cold water but reacts with steam when heated.

(e) Arrange the above metals in their decreasing order of reactivity.

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