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Uses of Slaked Lime

What will be ...

Question

What will be the product of magnesium nitride $M g_{3} N_{2}$ with warm water?

A

$N H_{4} O H$ and $M g$

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B

$M g {(O H)}_{2}$ and $N H_{3}$

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C

$M g O$ and $N H_{3}$

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D

None

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Solution

The correct option is B
$M g {(O H)}_{2}$ and $N H_{3}$

When magnesium nitride $M g_{3} N_{2}$ is made to react with warm $H_{2} O$ , the product formed is magnesium hydroxide and ammonia.

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

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Similar questions

What is the product formed when magnesium nitride, $M g_{3} N_{2}$ reacts with warm water?

Q. When Mg is burnt in air and they are decomposed by

H_{2} O

M g O, M g_{3} N_{2}

M g (O H)_{2}

N H_{3}

. If true enter 1, else enter 0.

Q. Assertion :Magnesium metal burns in air to give a white ash.When this ash is treated with water, the odour of ammonia can be detected. Reason: Mg burns in air to form MgO and

M g_{3} N_{2}

M g_{3} N_{2}

which on hydrolysis gives

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} ↑

Q. Assertion :Both

L i

M g

combine directly with

N_{2}

to give nitrides

L i_{3} N

M g_{3} N_{2}

. Reason: Nitrides of both

L i

M g

are decomposed by water to give

N H_{3}

.

Q. What is the action of warm water on magnesium nitride?

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Uses of Slaked Lime

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