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Reactivity with Air and Water (Group 2)

Magnesium pow...

Question

Magnesium powder burns in air to give

M g O

and

M g_{3} N_{2}

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M g (N O_{3})_{2}

and

M g_{3} N_{2}

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M g O

only

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M g O

and

M g (N O_{3})_{2}

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Solution

The correct option is A $M g O$ and $M g_{3} N_{2}$
Magnesium powder burns in air to give $M g O$ and $M g_{3} N_{2}$ . $M g O$ does not combine with excess oxygen to given any superoxide. $M g$ reacts with nitrogen to form magnesium nitride $(M g_{3} N_{2})$ .
$M g + O_{2} \to M g O$
$3 M g + N_{2} \to M g_{3} N_{2}$

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Similar questions

M g_{3} N_{2}

M g_{3} N_{2}

N H_{3}

2 M g + O_{2} \to 2 M g O

3 M g + N_{2} \to M g_{3} N_{2}

M g_{3} N_{2} + 6 H_{2} O \to 3 M g (O H)_{2} + 2 N H_{3} ↑

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