Chemistry Which gas emitted by power stations causes acid rain? Nitrogen Carbon dioxide Helium Sulphur dioxide Nitrogen Carbon dioxide Helium Sulphur dioxide ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which one of the following is used for dating very old objects of archaeological importance? Tritium Carbon-14 Phosphorus-31 Radium Tritium Carbon-14 Phosphorus-31 Radium ANSWER DOWNLOAD EXAMIANS APP
Chemistry Magnetite is Fe2O3 FeCO3 2Fe2O3. 3H2O Fe3O4 Fe2O3 FeCO3 2Fe2O3. 3H2O Fe3O4 ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which one of the following was used as a chemical weapon in the first world war ? Carbon monoxide Mustard gas Water gas Hydrogen cyanide Carbon monoxide Mustard gas Water gas Hydrogen cyanide ANSWER DOWNLOAD EXAMIANS APP
Chemistry When quick lime is added to water Temperature decreases No heat change takes place Heat is liberated Heat is absorbed Temperature decreases No heat change takes place Heat is liberated Heat is absorbed ANSWER DOWNLOAD EXAMIANS APP
Chemistry An emulsifier is an agent which Aids the flocculation of an emulsion Accelerates the dispersion Homogenises an emulsion Stabilises an emulsion Aids the flocculation of an emulsion Accelerates the dispersion Homogenises an emulsion Stabilises an emulsion ANSWER DOWNLOAD EXAMIANS APP
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