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. 90-100 250-300 15-30 90-100 250-300 15-30 ANSWER DOWNLOAD EXAMIANS APP
Chemical Process Plasticisers are added to paints to Give elasticity & prevent cracking of the film Make it corrosion resistant Make glossy surface Increase atmospheric oxidation Give elasticity & prevent cracking of the film Make it corrosion resistant Make glossy surface Increase atmospheric oxidation ANSWER DOWNLOAD EXAMIANS APP
Chemical Process Essential oils are usually obtained using Leaching Solvent extraction Extractive distillation Steam distillation Leaching Solvent extraction Extractive distillation Steam distillation ANSWER DOWNLOAD EXAMIANS APP
Chemical Process Low temperature carbonisation of coal takes place at __________ °C. 900 300 1100 700 900 300 1100 700 ANSWER DOWNLOAD EXAMIANS APP
Chemical Process Fusion of bauxite and __________ produces high alumina cement. Coke Alum Limestone Quartz Coke Alum Limestone Quartz ANSWER DOWNLOAD EXAMIANS APP
Chemical Process The only commercial Fischer-Tropsch plant for producing liquid hydrocarbon fuel from coal is located at Trombay (India) Redcar (U.K.) SASOL (in South Africa) Los-Angles (U.S.A.) Trombay (India) Redcar (U.K.) SASOL (in South Africa) Los-Angles (U.S.A.) ANSWER DOWNLOAD EXAMIANS APP
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