Chemistry Dry ice is the solid form of : Nitrogen Water Carbon di–oxide Air Nitrogen Water Carbon di–oxide Air ANSWER DOWNLOAD EXAMIANS APP
Chemistry The reaction intermediate formed during the preparation of diethylether from ethanol by treatment with H2SO4 is Carbocation Carbene Carbanion Free radical Carbocation Carbene Carbanion Free radical ANSWER DOWNLOAD EXAMIANS APP
Chemistry In a reaction of the type A+B ? C+D one could ensure it to be a first order reaction by : Increasing the concentration of a reactant Adding a catalyst Increasing the temperature Increasing the concentration of a product Increasing the concentration of a reactant Adding a catalyst Increasing the temperature Increasing the concentration of a product ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which one of the following is not present in cement ? Alum Gypsum Clay Alumina Alum Gypsum Clay Alumina ANSWER DOWNLOAD EXAMIANS APP
Chemistry Impure camphor is purified by Fractional crystallisation Sublimation Steam distillation Fractional distillation Fractional crystallisation Sublimation Steam distillation Fractional distillation ANSWER DOWNLOAD EXAMIANS APP
Chemistry Gold dissolves in Hydrochloric acid Nitric acid Acetic acid Aqua-regia Hydrochloric acid Nitric acid Acetic acid Aqua-regia ANSWER DOWNLOAD EXAMIANS APP