Chemistry Which among the following is used as a catalyst in the production of high octane fuels? HNO3 HCl HF H2SO4 HNO3 HCl HF H2SO4 ANSWER DOWNLOAD EXAMIANS APP
Chemistry Heavy metals got their name because compared to other atoms they have Higher atomic numbers Higher densities Higher atomic masses Higher atomic radii Higher atomic numbers Higher densities Higher atomic masses Higher atomic radii ANSWER DOWNLOAD EXAMIANS APP
Chemistry What is the mass percentage of oxygen in carbon dioxide (CO2) 0.305 0.658 0.509 0.727 0.305 0.658 0.509 0.727 ANSWER DOWNLOAD EXAMIANS APP
Chemistry What is a common name for the substance which irritates lachrymal glands ? Anaesthetic Gas Tear Gas Laughing Gas Noble Gas Anaesthetic Gas Tear Gas Laughing Gas Noble Gas ANSWER DOWNLOAD EXAMIANS APP
Chemistry The gas used in the artificial ripening of fruits is Ethane Acetylene Butane Methane Ethane Acetylene Butane Methane ANSWER DOWNLOAD EXAMIANS APP
Chemistry Sodium vapour lamps glow with yellow colour. This is due to The emission of excess energy absorbed by sodium atoms, in the yellow region of the spectrum sublimation of sodium to emit yellow colour Its ability to absorb all other colours except yellow The low ionisation energy of sodium The emission of excess energy absorbed by sodium atoms, in the yellow region of the spectrum sublimation of sodium to emit yellow colour Its ability to absorb all other colours except yellow The low ionisation energy of sodium ANSWER DOWNLOAD EXAMIANS APP
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