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NEET levelSingle correct optionDifficulty 1 of 3mt062

In the thermite process the metal used as the reducing agent is

A $Al$
B $Ag$
C $Cu$
D $Fe$

Answer: A

Aluminium has a very high affinity for oxygen. It reduces oxides such as

Cr X_{2} O X_{3}

and

Fe X_{2} O X_{3}

by

Fe X_{2} O X_{3} + 2 Al Al X_{2} O X_{3} + 2 Fe

, releasing great heat.

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