A. Liquefaction of air
B. Manufacture of soap
C. Brewing of beer
D. Catalytic cracking

Correct Answer: Option C

C. Brewing of beer  

SEE ALSO  If 50 cm3 of a saturated solution of KNO3 at 40 °C contained 5:05 g of the salt; its solubility at the same temperature would be [KNO3 = 101]

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