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 90-100 250-300 15-30 90-100 ANSWER DOWNLOAD EXAMIANS APP
Chemical Process Which of the following is used as a coagulant in treating turbid water? Activated carbon Chlorine Ferric sulphate Calcium sulphate Activated carbon Chlorine Ferric sulphate Calcium sulphate ANSWER DOWNLOAD EXAMIANS APP
Chemical Process Sudden temperature fluctuation does not affect pyrex glass, because of its High melting point Both B and C Low co-efficient of expansion High co-efficient of expansion High melting point Both B and C Low co-efficient of expansion High co-efficient of expansion ANSWER DOWNLOAD EXAMIANS APP
Chemical Process Thermal pyrolysis of ethylene dichloride produces Trichloroethylene Ethanol amine Vinyl chloride Ethylene oxide Trichloroethylene Ethanol amine Vinyl chloride Ethylene oxide ANSWER DOWNLOAD EXAMIANS APP
Chemical Process Chlorine gas is produced by the electrolysis of brine (NaCl solution with solid NaCl make up) in mercury electrolytic cell. Which of the following is the anodic reaction? Reduction of Na+ ions Oxidation of Cl- ions Oxidation of Na+ ions Reduction of Cl- ions Reduction of Na+ ions Oxidation of Cl- ions Oxidation of Na+ ions Reduction of Cl- ions ANSWER DOWNLOAD EXAMIANS APP
Chemical Process Ultimate analysis of coal determines its __________ content. Carbon, hydrogen, nitrogen & sulphur Carbon, sulphur, volatile matter & ash Carbon, ash, sulphur & nitrogen Carbon, volatile matter, ash & moisture Carbon, hydrogen, nitrogen & sulphur Carbon, sulphur, volatile matter & ash Carbon, ash, sulphur & nitrogen Carbon, volatile matter, ash & moisture ANSWER DOWNLOAD EXAMIANS APP
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