An element 'E' gives following reaction sequence :
$E + {N}_{2}\overset{Hightemp .}{→}EN\mathop{→}_{Hightemp .}^{water}E ( OH{)}_{3} + {NH}_{3}$
Element E may be:

Question

An element 'E' gives following reaction sequence : E + N _ 2 Hightemp . → EN → _ Hightemp . ^ water E ( OH ) _ 3 + NH _ 3 Element E may be:

Quantrex Academy · Accepted Answer

Correct answer: A. B or Al

Aluminium and boron forms nitride with nitrogen at higher temperature due to the high bond energy of nitrogen.
The reaction of boron and nitrogen forms boron nitride which is then hydrolysed to form products as follows:
$2B + {N}_{2}\overset{Hightemp .}{→}2BN\mathop{→}_{Hightemp .}^{water}B ( OH{)}_{3} + {NH}_{3}$
Aluminium forms aluminium nitride and it further hydrolysed as follows:
$2Al + {N}_{2}\overset{Hightemp .}{→}2AlN\mathop{→}_{Hightemp .}^{water}Al ( OH{)}_{3} + {NH}_{3}$

An element 'E' gives following reaction sequence : E + N _ 2...

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