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In a thermite reaction, a compound of ir...

In a thermite reaction, a compound of iron reacts with a metal.
The correct equation to justify thermite reaction is:

A

`Fe_(2)O_(3)+2Al to 2Fe+Al_(2)O_(3)-" Heat"`.

B

`Fe_(2)O_(3)+2Al to 2Fe+Al2O_(3)+" Heat"`.

C

`Al_(2)O_(3)+2Fe to 2Al +Fe_(2)O_(3)+" Heat"`.

D

`Fe_(2)O_(3)+2Al to 2Fe +Al_(2)O_(3)`.

Text Solution

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The correct Answer is:
B
In the thermíte process, iron (III) oxide is heated with aluminium, which results in evolution of high amount of heat which Ia melts iron. This mölten iron is used to fill the cracked machine parts:
`Fe_(2)O_(s)+2Al(s) to 2Fe(I)+Al2O_(3)(s)+"Heat"`
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