Chemistry The chemical name of 'laughing gas' is Nitrogen dioxide Nitrous oxide Nitrogen pentoxide Nitric oxide Nitrogen dioxide Nitrous oxide Nitrogen pentoxide Nitric oxide ANSWER DOWNLOAD EXAMIANS APP
Chemistry The number of g-molecule of oxygen in 6.02 x 1024CO molecules is 10 gram of molecule 0.5 gram of molecule 1 gram of molecule 5 gram of molecule 10 gram of molecule 0.5 gram of molecule 1 gram of molecule 5 gram of molecule ANSWER DOWNLOAD EXAMIANS APP
Chemistry Heavy metal pollution of water is caused by: Acid Plants Wood burning Paints Domestic sewage Acid Plants Wood burning Paints Domestic sewage ANSWER DOWNLOAD EXAMIANS APP
Chemistry The elements in the modern Periodic table are arranged according to their Atomic number Mass number Neutron number Atomic Weight Atomic number Mass number Neutron number Atomic Weight ANSWER DOWNLOAD EXAMIANS APP
Chemistry It is dangerous to leave the car engine running in a closed garage, because it may cause serious pollution due to poisoning by emission of SO2 CO2 CO Unburnt petrol SO2 CO2 CO Unburnt petrol ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which one element has the highest electronegativity value Lithium Nitrogen Chlorine Fluorine Lithium Nitrogen Chlorine Fluorine ANSWER DOWNLOAD EXAMIANS APP
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