First slide

13th group or boron group

Question

Thermite mixture used for welding is

Moderate

A

Fe and Al
B

Ferric oxide+ Al powder
C

BaO₂+ Mg powder
D

Cu + Al

Solution

${Fe}_{2} O_{3} + 2 Al \to {Al}_{2} O_{3} + 2 Fe + Heat$

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