Chemical Process
Exothermic condensation reaction of monochlorobenzene with chloral in presence of 20% oleum as catalyst produces DDT. The reaction temperature is maintained at __________ °C.

250-300
15-30
90-100

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Chemical Process
Shaving soaps are

High free alkali soaps having excess of cane sugar and alcohol
Soft potassium soaps (potassium salt of fatty acid) with free stearic acid to give lather a lasting property
Metalic soaps compounded with frothing agents
None of these

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