Magnesium powder burns in air to give

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Magnesium powder burns in air to give

Chemistrys Block ElementsJEE MainJEE Main 2019 (09 Apr Shift 1)

Options:

A $M g O a n d M g_{3} N_{2}$ .
B $M g O o n l y$ .
C $M g {(N O_{3})}_{2} a n d M g_{3} N_{2}$ .
D $M g O a n d M g {(N O_{3})}_{2}$ .

Solution:

2159 Upvotes Verified Answer

The correct answer is:

M g O a n d M g_{3} N_{2}

.

$N_{2}$ and $O_{2}$ are present in the air as the main constituent, so the following reaction takes place:

$Mg + O_{2} \to M gO, M g + N_{2} \to M g_{3} N_{2}$ will form.

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