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
Chemical Process Adipic acid is an intermediate in the manufacture of Nylon-66 Perspex Polystyrene Bakelite Nylon-66 Perspex Polystyrene Bakelite ANSWER DOWNLOAD EXAMIANS APP
Chemical Process Poly tetraflouro ethylene (P.T.F.E.) is known as Teflon Decron Celluloid Bakelite Teflon Decron Celluloid Bakelite ANSWER DOWNLOAD EXAMIANS APP
Chemical Process Common salt is generally not produced commonly by __________ method from brine. Freeze drying Solar evaporation Vacuum evaporation Electrolytic Freeze drying Solar evaporation Vacuum evaporation Electrolytic ANSWER DOWNLOAD EXAMIANS APP
Chemical Process During the absorption of HCl gas in water (to produce liquid HCl), the gas is kept above dew point to None of these Reduce the cooling water circulation rate Increase the rate of absorption Avoid corrosion None of these Reduce the cooling water circulation rate Increase the rate of absorption Avoid corrosion ANSWER DOWNLOAD EXAMIANS APP
Chemical Process __________ are used as corrosion inhibitor for iron & steel in aqueous solutions. Chromates Sulphates Bi-carbonates Phosphates Chromates Sulphates Bi-carbonates Phosphates ANSWER DOWNLOAD EXAMIANS APP
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