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When magnesium ribbon is heated to redne...

When magnesium ribbon is heated to redness in an atmosphere of nitrogen and subsequently cooled with water, the gas evolved is-

A

`N_(2)`

B

`NH_(3)`

C

`O_(2)`

D

`CO_(2)`

Text Solution

Verified by Experts

The correct Answer is:
B
`3Mg + 6N_(2) overset(Delta)rarr 2Mg_(3)N_(2)`
`Mg_(3)N_(2)+ 6HOH rarr 3Mg(OH)_(2)+ 2NH_(3)`
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