Chemistry When Hydrogen starts burning in air, it produces ? Water Methane Carbonic Acid Ammonia Water Methane Carbonic Acid Ammonia ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which of the following is secondary air pollutant ? SO2 Dust particles NO2 Photochemical smog SO2 Dust particles NO2 Photochemical smog ANSWER DOWNLOAD EXAMIANS APP
Chemistry Ultraviolet radiation striking the earth is due to the depletion of Ozone Carbon dioxide Oxygen Carbon monoxide Ozone Carbon dioxide Oxygen Carbon monoxide ANSWER DOWNLOAD EXAMIANS APP
Chemistry The material which can be deformed permanently by heat and pressure is called a thermoplastic thermoset chemical compound polymer thermoplastic thermoset chemical compound polymer ANSWER DOWNLOAD EXAMIANS APP
Chemistry What is the mass percentage of oxygen in carbon dioxide (CO2) 0.658 0.305 0.509 0.727 0.658 0.305 0.509 0.727 ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which method will be employed to test the hardness of water? Distillation Boiling None of these Formation of lather with soap Distillation Boiling None of these Formation of lather with soap ANSWER DOWNLOAD EXAMIANS APP