Chemistry In upper layer of atmosphere ozone is formed by The action of ultraviolet rays on oxygen The combination of oxygen molecules The action of nitrogen on oxygen in atmosphere Subjecting oxygen to high pressure The action of ultraviolet rays on oxygen The combination of oxygen molecules The action of nitrogen on oxygen in atmosphere Subjecting oxygen to high pressure ANSWER DOWNLOAD EXAMIANS APP
Chemistry Ultraviolet radiation striking the earth is due to the depletion of Carbon monoxide Ozone Oxygen Carbon dioxide Carbon monoxide Ozone Oxygen Carbon dioxide ANSWER DOWNLOAD EXAMIANS APP
Chemistry Chloroform can be used as Antibiotic Analgesic Anaesthetic Antimalarial Antibiotic Analgesic Anaesthetic Antimalarial ANSWER DOWNLOAD EXAMIANS APP
Chemistry The polymer obtained by the condensation of hexamethylene diamine and adipic acid is : Nylon 66 Terylene Bakelite Tollen's Nylon 66 Terylene Bakelite Tollen's ANSWER DOWNLOAD EXAMIANS APP
Chemistry Who first published the periodic table Julius Lothar Meyer John Dalton Dmitri Mendeleev Henry Moseley Julius Lothar Meyer John Dalton Dmitri Mendeleev Henry Moseley ANSWER DOWNLOAD EXAMIANS APP
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