First slide

Atomic and physical properties

Question

When alumina is heated with carbon in the atmosphere of nitrogen then products formed are

Moderate

A

Al + CO
B

AlN + CO
C

$Al + {CO}_{2}$
D

$Al + CO + N_{2}$

Solution

${Al}_{2} O_{3} . 2 H_{2} O + 3 C + N_{2} \overset{1800^{0} C}{\to} 2 AlN + 3 CO + 2 H_{2} O$

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