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. 15-30 90-100 250-300 15-30 90-100 250-300 ANSWER DOWNLOAD EXAMIANS APP
Chemical Process Pure rectified spirit contains about __________ percent alcohol. 70 95 45 99.5 70 95 45 99.5 ANSWER DOWNLOAD EXAMIANS APP
Chemical Process High temperature carbonisation of coal produces Inferior coke compared to low temperature carbonisation None of these Larger quantity of tar compared to low temperature carbonisation Less of gases compared to liquid products Inferior coke compared to low temperature carbonisation None of these Larger quantity of tar compared to low temperature carbonisation Less of gases compared to liquid products ANSWER DOWNLOAD EXAMIANS APP
Chemical Process Yellow glycerine is made into white, using Bentonite Activated carbon Bauxite Diatomaceous earth Bentonite Activated carbon Bauxite Diatomaceous earth ANSWER DOWNLOAD EXAMIANS APP
Chemical Process Phthalic anhydride is made by the Oxidation of benzene Dehydrogenation of ethyl benzene Oxidation of naphthalene None of these Oxidation of benzene Dehydrogenation of ethyl benzene Oxidation of naphthalene None of these ANSWER DOWNLOAD EXAMIANS APP
Chemical Process Which of the following is not a product of coal tar distillation? None of these Carbolic oil Anthracene Cresote oil None of these Carbolic oil Anthracene Cresote oil ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS