Chemical Process Which one of the following is not an elastomer? Polyisoperene Nitrile-butadiene None of these Neoprene Polyisoperene Nitrile-butadiene None of these Neoprene ANSWER DOWNLOAD EXAMIANS APP
Chemical Process Most widely and commonly used coagulant for the removal of suspended impurities in water is Slaked lime Copper sulphate Bleaching powder Alum Slaked lime Copper sulphate Bleaching powder Alum 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. 15-30 90-100 250-300 15-30 90-100 250-300 ANSWER DOWNLOAD EXAMIANS APP
Chemical Process Boiling of water containing temporary hardness produces CaSO₄ None of these CaHCO₃ CO₂ CaSO₄ None of these CaHCO₃ CO₂ ANSWER DOWNLOAD EXAMIANS APP
Chemical Process Vulcanisation of rubber Increases its oil & solvent resistance Decreases its tensile strength Converts its plasticity into elasticity Increases its ozone & oxygen reactivity Increases its oil & solvent resistance Decreases its tensile strength Converts its plasticity into elasticity Increases its ozone & oxygen reactivity ANSWER DOWNLOAD EXAMIANS APP
Chemical Process Good quality of edible salt is obtained from brine by the process of Solar evaporation Electrolysis Freeze drying Vacuum evaporation Solar evaporation Electrolysis Freeze drying Vacuum evaporation ANSWER DOWNLOAD EXAMIANS APP
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