Chemical Process Poly tetraflouro ethylene (P.T.F.E.) is known as Teflon Bakelite Decron Celluloid Teflon Bakelite Decron Celluloid ANSWER DOWNLOAD EXAMIANS APP
Chemical Process High temperature carbonisation of coal takes place at __________ °C. 1100 2000 < 500 700 1100 2000 < 500 700 ANSWER DOWNLOAD EXAMIANS APP
Chemical Process Which of the following is not produced commercially from sea water? Common salt Bromine Magnesium & potassium compounds Iodine Common salt Bromine Magnesium & potassium compounds Iodine ANSWER DOWNLOAD EXAMIANS APP
Chemical Process Temporary hardness of water can be removed by Boiling Addition of alum (a coagulant) Addition of lime Filtration (through gravity sand filter) Boiling Addition of alum (a coagulant) Addition of lime Filtration (through gravity sand filter) ANSWER DOWNLOAD EXAMIANS APP
Chemical Process Oils are partially hydrogenated (not fully) to manufacture vanaspati, because fully saturated solidified oils Have affinity to retain harmful sulphur compounds Cause cholesterol build up and blood clotting Are prone to rancid oxidation Always contain some amount of nickel (as their complete removal is very difficult) Have affinity to retain harmful sulphur compounds Cause cholesterol build up and blood clotting Are prone to rancid oxidation Always contain some amount of nickel (as their complete removal is very difficult) ANSWER DOWNLOAD EXAMIANS APP
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 90-100 15-30 250-300 90-100 15-30 ANSWER DOWNLOAD EXAMIANS APP
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