Roasting is carried out to ______________.

convert sulphide to oxide and sulphate

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remove water of hydration

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melt the ore

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remove arsenic and sulphur impurities

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Solution

The correct option is A convert sulphide to oxide and sulphate
The process of conversion of the ore into its oxide by heating it below its melting point in the presence of oxygen.
sulphide ores are converted into oxides by heating strongly in the presence of excess air, so that oxygen gets added to form the corresponding oxides. Sulphur impurities escape as gas. This process is known as roasting. Roasting is not concerned with removal of water of hydration.

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Similar questions

C u S

F e S

(S n O_{2})

C u S O_{4}

F e S O_{4}

Consider the following statements :

Roasting is carried out in order to :

I. convert sulphide to oxide and sulphate

II. remove water of hydration.

III. melt the ore.

IV. remove arsenic and sulphur impurities.

Of these statements select the correct one/s.

S O_{2}

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