An element M burns in oxygen to form an ionic compound MO. Which of the following formulae of the compound is correct if this element is made to combine with chlorine?

MCl

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MCl₂

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MCl₃

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MCl₄

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Solution

The correct option is B
MCl₂

An ionic compound MO shows that valency of M is +2 as the valency of oxygen is -2. So, $M^{2 +}$ combine with $C l^{1 -}$ to form $M C l_{2}$ .

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An element M burns in oxygen to form an ionic compound MO. Which of the following formulae of the compound is correct if this element is made to combine with chlorine?

The correct option is B MCl2 An ionic compound MO shows that valency of M is +2 as the valency of oxygen is -2. So, M2+ combine with Cl1− to form MCl2.

The correct option is B
MCl₂

An ionic compound MO shows that valency of M is +2 as the valency of oxygen is -2. So, $M^{2 +}$ combine with $C l^{1 -}$ to form $M C l_{2}$ .