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Select the incorrect statement with respect to the differences between roasting and calcination.
(1) In roasting at higher temperature, sulphide ores of the some metals like \( \mathrm{Cu}, \mathrm{Pb}, \mathrm{Hg} \) etc. are reduced directly to metal but not in calcination.
(2) Partial fusion occurs in calcination but not in roasting.
(3) Calcination is done in limited supply of air or absence of air but in roasting supply of excess air is required.
(4) Combustion reaction occurs in roasting
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