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Aluminothermy used for on the spot weldi...

Aluminothermy used for on the spot welding of large iron structures is based upon the fact that

A

As compared to iron, aluminium has greater affinity for oxygen

B

As compared to aluminium iron has greater affinity for oxygen

C

Reaction between iron and oxygen is endothermic

D

Reaction between aluminium and oxygen is endothermic

Text Solution

Verified by Experts

The correct Answer is:
A
This is because aluminium has greater affinity for oxygen.
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