Chemistry Major portion of the earth’s crust is mainly constituted by Silicon and Aluminium Silicon and Iron Oxygen and Iron Oxygen and Silicon Silicon and Aluminium Silicon and Iron Oxygen and Iron Oxygen and Silicon ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which of the following is not an addition polymer Polythene Polystyrene Nylon PVC Polythene Polystyrene Nylon PVC ANSWER DOWNLOAD EXAMIANS APP
Chemistry Match the sourc in Column B with the product of Column A. (Product) Column B (Source)A. Formic acid1. LemonB. Citric acid 2. TamarindC. Tartaric acid3. Ants A B C3 2 1 A B C 2 3 1 A B C 2 1 3 A B C 3 1 2 A B C3 2 1 A B C 2 3 1 A B C 2 1 3 A B C 3 1 2 ANSWER DOWNLOAD EXAMIANS APP
Chemistry Mercury is emitted into air by Steam engine Burning garbage Coal fire Burning coal Steam engine Burning garbage Coal fire Burning coal ANSWER DOWNLOAD EXAMIANS APP
Chemistry What is the product formed when sodium bicarbonate is heated strongly? Sodium Hydroxide Sodium Peroxide Sodium Monoxide Sodium Carbonate Sodium Hydroxide Sodium Peroxide Sodium Monoxide Sodium Carbonate ANSWER DOWNLOAD EXAMIANS APP
Chemistry When conc. H2SO4 is added to dry KNO3, brown fumes are evolved. These fumes are due to SO3 NO2 SO2 N2O SO3 NO2 SO2 N2O ANSWER DOWNLOAD EXAMIANS APP
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