Chemistry When conc. H2SO4 is added to dry KNO3, brown fumes are evolved. These fumes are due to N2O SO3 NO2 SO2 N2O SO3 NO2 SO2 ANSWER DOWNLOAD EXAMIANS APP
Chemistry When quick lime is added to water Heat is liberated Temperature decreases No heat change takes place Heat is absorbed Heat is liberated Temperature decreases No heat change takes place Heat is absorbed ANSWER DOWNLOAD EXAMIANS APP
Chemistry The coloured discharge tubes for advertisement mainly contain Helium Argon Neon Xenon Helium Argon Neon Xenon ANSWER DOWNLOAD EXAMIANS APP
Chemistry The wire of flash bulb is made of: Magnesium Barium Silver Copper Magnesium Barium Silver Copper ANSWER DOWNLOAD EXAMIANS APP
Chemistry Silver gets corroded due to ________ in air. Carbon dioxide Nitrogen Oxygen Hydrogen Sulphide Carbon dioxide Nitrogen Oxygen Hydrogen Sulphide ANSWER DOWNLOAD EXAMIANS APP
Chemistry The gas causing acid rain in an industrial area is Carbon dioxide Methane Sulphur dioxide Carbon monoxide Carbon dioxide Methane Sulphur dioxide Carbon monoxide ANSWER DOWNLOAD EXAMIANS APP
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