A) \[MgO+Al\]
B) \[F{{e}_{3}}{{O}_{4}}+Al\]
C) \[Zn+CaC{{O}_{3}}\]
D) \[Zn+{{P}_{2}}{{O}_{5}}\]
Correct Answer: B
Solution :
Thermite is mixture of \[Al+F{{e}_{3}}{{O}_{4}}\]. It is used in iron welding.
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