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Give reason for the following : (i) Be...

Give reason for the following :
(i) Before reduction, sulphide ores are converted into its oxides.
(ii) The reduction of metal oxide takes place the thermite process. Give equation.

Text Solution

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The sulphide ores are converted into oxides before reduction.
(i) Because oxides are easier to reduce.
(ii) In thermite process, metal oxides such as chromium and manganese oxides are reduced.
`Cr_(2)O_(3) + 2Al rarr Al_(2)O_(3) + 2Cr +` Heat
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