In thermite welding, aluminium acts as a/an:

solder

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flux

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oxidising agent

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reducing agent

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Solution

The correct option is B reducing agent
In thermite welding, aluminium acts as reducing agent.Aluminium is used in thermite welding of broken iron parts. The reduction of ferric oxide by aluminium is highly exothermic and therefore, the iron formed will be in the molten state. Thermite reaction involving aluminium is also called Goldschmidt alumino thermic reaction.

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Similar questions

Q. The property of the metal utilized in aluminium in thermite welding is:

Q. Aluminium is used in thermite welding because:

Q. Aluminium powder is used in thermite welding because :

${F e}_{2} O_{3}$ + $A l$ $\to$ $F e$ + ${A l}_{2} O_{3}$
This is the reaction used in thermite welding process. Calcium can also be used instead of aluminium in this process.

Q. Assertion :In thermite welding, aluminium powder and

F e_{2} O_{3}

are used. Reason: Aluminium powder is a strong reducing agent.

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