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A sulphide ore is first converted into i...

A sulphide ore is first converted into its oxide before reduction. This is done because :

A

a sulphide ore cannot be reduced to metal at all

B

no reducing agent is found suitable for reducing a sulphide ore

C

the enthalpy of formation of `CO_(2)` is more than that of `CS_(2)`

D

a metal oxide is generally less stable than the metal sulphide

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The correct Answer is:
d
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Sulphide ores are converted into oxides by

Why are sulphide ores converted to oxide before reduction?

Explain the following (a) CO_(2) is a better reducing agent below 710 K whereas CO is a better reducing agent above 710 K . (b) Generally sulphide ores are converted into oxides before reduction. ( c) Silica is added to the sulphide ore of copper in the reverberatory furnance. (d) Carbon and hydrogen are not used as reducing agents at high temperature. (e) Vapour phase refining method is used for the purification of Ti

Assertion : Sulphide ores are converted to oxides before reduction. Reason : Oxides are easier to reduce.

A sulphide ore like ZnS is first roasted into its oxide prior to reduction by carbon because:

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