Chemistry Ozone layer of atmosphere absorbs: Ultraviolet rays Cosmic rays. Infra-red rays All radiations of Light Ultraviolet rays Cosmic rays. Infra-red rays All radiations of Light ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which one of the following is used as an anti-freeze for the automobile engines ? Propyl alcohol Ethanol Ethylene glycol Methanol Propyl alcohol Ethanol Ethylene glycol Methanol ANSWER DOWNLOAD EXAMIANS APP
Chemistry Higher concentration of nitrogen dioxide in atmosphere air causes Corrosion Cancer Bronchitis Asphyxiation Corrosion Cancer Bronchitis Asphyxiation ANSWER DOWNLOAD EXAMIANS APP
Chemistry Gunpowder consits of a mixture of Sulphur, sand and charcoal TNT and charcoal Sand and TNT Nitre, sulphur and charcoal Sulphur, sand and charcoal TNT and charcoal Sand and TNT Nitre, sulphur and charcoal 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 Which of the following metals is not a pollutant ? Lead Arsenic Aluminium Mercury Lead Arsenic Aluminium Mercury ANSWER DOWNLOAD EXAMIANS APP