MEDIUMMCQ SINGLEJEE Mains ChemistryInorganic Chemistryp-Block (group 13 and 14)Aluminium and Its Compounds

When alumina is heated with carbon in nitrogen atmo- sphere, the products are:

A.Al + CO

B.Al + CO₂

C.Al + CO + CO₂

D.AlN + CO✓ Correct

Explanation

When alumina 2 3 Al O is heated with carbon in the atmosphere of nitrogen it forms aluminium nitride (AlN) and carbon monoxide (CO). And the chemical reaction is followed as 2 3 2 Al O C 3N 2AlN 3CO + + ® +

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