Chemistry Laughing gas is Nitrous oxide Nitrogen trioxide Nitrogen pentoxide Nitric oxide Nitrous oxide Nitrogen trioxide Nitrogen pentoxide Nitric oxide ANSWER DOWNLOAD EXAMIANS APP
Chemistry The ionisation energy of hydrogen atom in the ground state is x KJ. The energy required for an electron to jump from 2nd orbit to 3rd orbit is 5x/36 7.2 x x/6 5x 5x/36 7.2 x x/6 5x ANSWER DOWNLOAD EXAMIANS APP
Chemistry The gas used to extinguish fire is Neon Carbon monoxide Carbon dioxide Nitrogen Neon Carbon monoxide Carbon dioxide Nitrogen ANSWER DOWNLOAD EXAMIANS APP
Chemistry Maximum permissible concentration of total hardness in drinking water is 200 500 50 100 200 500 50 100 ANSWER DOWNLOAD EXAMIANS APP
Chemistry Higher concentration of nitrogen dioxide in atmosphere air causes Bronchitis Asphyxiation Cancer Corrosion Bronchitis Asphyxiation Cancer Corrosion ANSWER DOWNLOAD EXAMIANS APP
Chemistry The gas which is mainly responsible for the green house effect is: Carbon dioxide Ozone Oxygen Carbon monoxide Carbon dioxide Ozone Oxygen Carbon monoxide ANSWER DOWNLOAD EXAMIANS APP
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