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Consider the following statements : Ro...

Consider the following statements :
Roasting is carried out to :
1. Convert sulphide into oxide
2. Melt the ore
3. Remove moisture, water of hydration and expel organic matter
4. Remove sulphur and arsenic in the form of volatile oxides
Out of these statements :

A

i, ii and iv

B

i, ii and iii

C

ii, iii and iv

D

i, ii and iv

Text Solution

Verified by Experts

The correct Answer is:
A
Roasting is carried out below fusion temperature
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When roasting is carried out: (P) sulphde ore sare converted into oxide and suphate (Q) Remove water of hydration (R ) Melt the ore (S) Remove arsenic and sulphur impurities

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