1.

Which one of the following metals can be extracted by aluminothermit process

Answer»

Manganese
Iron
Chromium
MAGNESIUM

Solution :In aluminothermite process AL is reducing agent. It reduces oxides of LESS EP metal oxides into METALS like Fe, Cr Mn etc.
`{:(Cr_(2)O_(3)+2Al to 2Cr+Al_(2)O_(3)+"heat"),(Fe_(2)O_(3)+2Al to 2Fe+Al_(2)O_(3)+"heat"),(3Mn_(3)O_(4)+8Al to 8Mn+Al_(2)O_(3)+"heat"):}`


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