Chemical Process Dacron (or terylene) fibres as compared to nylon's fibres have Poorer resistance to alkalis All of these Better heat & acid resistant properties Poorer dyeability Poorer resistance to alkalis All of these Better heat & acid resistant properties Poorer dyeability 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. 90-100 250-300 15-30 90-100 250-300 15-30 ANSWER DOWNLOAD EXAMIANS APP
Chemical Process A mixture of chlorine & sodium bromide acts as a/an Fire retardant Hydrogenation catalyst Insecticides Analgesic drug Fire retardant Hydrogenation catalyst Insecticides Analgesic drug ANSWER DOWNLOAD EXAMIANS APP
Chemical Process Pick out the endothermic reaction out of the following. CaCO₃ = CaO + CO₂ CO + 3H₂ = CH₄ + H₂O CO +1/2O₂ = CO₂ C+1/2O₂ = CO CaCO₃ = CaO + CO₂ CO + 3H₂ = CH₄ + H₂O CO +1/2O₂ = CO₂ C+1/2O₂ = CO ANSWER DOWNLOAD EXAMIANS APP
Chemical Process Ethyl alcohol cannot be produced From molasses None of these By esterification and hydroloysis of ethylene From waste sulphite substrate of paper mills From molasses None of these By esterification and hydroloysis of ethylene From waste sulphite substrate of paper mills ANSWER DOWNLOAD EXAMIANS APP
Chemical Process Hydrogenation of oil/fat does not None of these Remove double bonds Raise its melting point Improve its resistance to rancid oxidation None of these Remove double bonds Raise its melting point Improve its resistance to rancid oxidation ANSWER DOWNLOAD EXAMIANS APP
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