Chemistry Which of the following is a secondary pollutant ? PAN CO NO SO2 PAN CO NO SO2 ANSWER DOWNLOAD EXAMIANS APP
Chemistry Ozone saves the biosphere by absorbing high energy radiations called ________ . Ultraviolet rays (UV) Infra-red (IR) Gamma rays X–rays Ultraviolet rays (UV) Infra-red (IR) Gamma rays X–rays ANSWER DOWNLOAD EXAMIANS APP
Chemistry An atom of an element has atomic number 17 and mass number 36. The number of neutrons in its nucleus is 19 17 36 53 19 17 36 53 ANSWER DOWNLOAD EXAMIANS APP
Chemistry Inert gases are Not stable Miscible with water Chemically unreactive Chemically very active Not stable Miscible with water Chemically unreactive Chemically very active ANSWER DOWNLOAD EXAMIANS APP
Chemistry A fertile soil is likely to have a pH of 14 9 3 43989 14 9 3 43989 ANSWER DOWNLOAD EXAMIANS APP
Chemistry Acid rain is caused due to emission of which of the following in to the atmosphere ? Carbon dioxide and carbon monoxide Oxides of nitrogen and sulphur Ozone and carbon dioxide Carbon monoxide and nitrogen Carbon dioxide and carbon monoxide Oxides of nitrogen and sulphur Ozone and carbon dioxide Carbon monoxide and nitrogen ANSWER DOWNLOAD EXAMIANS APP
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