Chemistry The chemical formula of the laughing gas is N2O N2O3 NO NO2 N2O N2O3 NO NO2 ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which one of the following metals pollutes the air of a city having large number of automobiles? Lead Copper Chromium Cadmium Lead Copper Chromium Cadmium ANSWER DOWNLOAD EXAMIANS APP
Chemistry In deep-sea diving, divers use a mixture of gases consisting of oxygen and Nitrogen Hydrogen Helium Argon Nitrogen Hydrogen Helium Argon ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which of the following metals has least melting point ? Gold Copper Silver Mercury Gold Copper Silver Mercury ANSWER DOWNLOAD EXAMIANS APP
Chemistry If water smells bad, then that odour can be removed by adding Alum Deactivated nitrogen Activated carbon Bleach Alum Deactivated nitrogen Activated carbon Bleach ANSWER DOWNLOAD EXAMIANS APP
Chemistry The chemical used in embalming biological materials is Gaseous formaldehyde Formaldehyde in methanol Ethylene glycol Formaldehyde in water Gaseous formaldehyde Formaldehyde in methanol Ethylene glycol Formaldehyde in water ANSWER DOWNLOAD EXAMIANS APP
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