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Magnesium burns in air to produce?

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{MgO}_{}

and

{MgN}_{}

{MgO}_{2}

and

{Mg}_{3} N_{2}

{MgO}_{}

and

{Mg}_{3} N_{2}

{Mg}_{2} O

and

{Mg}_{3} N_{2}

answer is C.

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Detailed Solution

● Group II element magnesium has a reactive character.

{Mg}_{}

reacts with

O_{2}

from the air;

{2 Mg + O}_{2} \to 2 MgO_{}

● Here, O accepts the 2 electrons that

Mg

can contribute because it is a group II element, forming the combination

MgO

N_{2}

is also present in air.

Mg

thus reacts with

N_{2}

as;

{3 Mg + N}_{2} \to {Mg}_{3} N_{2}_{}

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