Which of the following reaction(s) is/ar...

Which of the following reaction(s) is/are involved in thermit process ?

A

`3Mn_(3)O_(4) +8Al rarr +9Mn+4Al_(2)O_(3)`

B

`Cr_(2)O_(3) + 2Alrarr2Cr + Al_(2)O_3`

C

`Fe_(2)O_(3) + 2Alrarr2Fe + Al_(2)O_3`

D

`B_(2)O_(3) +2Al rarr2B+Al_(2)O_3`

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The correct Answer is:

A, B, C

Al is good reducing agent and is used to re duce oxides of metals Eg: Cr, Mn, Fe oxides

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