Chemistry When conc. H2SO4 is added to dry KNO3, brown fumes are evolved. These fumes are due to SO2 NO2 N2O SO3 SO2 NO2 N2O SO3 ANSWER DOWNLOAD EXAMIANS APP
Chemistry An electric iron has a heating element made of : Zinc Nichrome Copper Tungsten Zinc Nichrome Copper Tungsten ANSWER DOWNLOAD EXAMIANS APP
Chemistry Persons working in cement plants and lime stone quarries are prone to disease like Silicosis Pneumoconiosis Cancer Asthma Silicosis Pneumoconiosis Cancer Asthma ANSWER DOWNLOAD EXAMIANS APP
Chemistry Sulphur dioxide level in the atmosphere can be reduced by using Static electricity to attract it in factory chimneys More efficient car engines Low - sulphur fuels Catalytic converters in industry Static electricity to attract it in factory chimneys More efficient car engines Low - sulphur fuels Catalytic converters in industry ANSWER DOWNLOAD EXAMIANS APP
Chemistry If water smells bad, then that odour can be removed by adding Activated carbon Bleach Deactivated nitrogen Alum Activated carbon Bleach Deactivated nitrogen Alum ANSWER DOWNLOAD EXAMIANS APP
Chemistry What is a common name for the substance which irritates lachrymal glands ? Laughing Gas Anaesthetic Gas Tear Gas Noble Gas Laughing Gas Anaesthetic Gas Tear Gas Noble Gas ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS