Chemistry The chief source of naphthalene is Camphor Coal-tar Charcoal Diesel Camphor Coal-tar Charcoal Diesel ANSWER DOWNLOAD EXAMIANS APP
Chemistry The most electronegative element among the following is oxygen sodium bromine fluorine oxygen sodium bromine fluorine ANSWER DOWNLOAD EXAMIANS APP
Chemistry Commercial nitric acid is coloured because it contains dissolved : Oxygen Nitrous oxide Coloured impurities Nitrogen dioxide Oxygen Nitrous oxide Coloured impurities Nitrogen dioxide ANSWER DOWNLOAD EXAMIANS APP
Chemistry Glycol is added to aviation gasoline because it Prevents freezing of petrol Reduces consumption of petrol Reduces evaporation of petrol Increases efficiency of petrol Prevents freezing of petrol Reduces consumption of petrol Reduces evaporation of petrol Increases efficiency of petrol ANSWER DOWNLOAD EXAMIANS APP
Chemistry An acid having basicity one is Sodium dihydrogen phosphate Sodium phosphate Disodium hydrogen phosphate Phosphoric acid Sodium dihydrogen phosphate Sodium phosphate Disodium hydrogen phosphate Phosphoric acid ANSWER DOWNLOAD EXAMIANS APP
Chemistry What is a common name for the substance which irritates lachrymal glands ? Tear Gas Anaesthetic Gas Laughing Gas Noble Gas Tear Gas Anaesthetic Gas Laughing Gas Noble Gas ANSWER DOWNLOAD EXAMIANS APP