Chemistry Copper substances when exposed to air gains a green coating due to the formation of: CuSO4 Cu(NO3)2 CuCO3 Cu(OH)2 CuO CuSO4 Cu(NO3)2 CuCO3 Cu(OH)2 CuO ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which of the following chemical materials is responsible for the depletion of ozone layer in the atmosphere ? Chlorofluorocarbon Carbon dioxide Sulphur dioxide Nitrous oxide Chlorofluorocarbon Carbon dioxide Sulphur dioxide Nitrous oxide ANSWER DOWNLOAD EXAMIANS APP
Chemistry The following are the half lives of four active isotopes. Which one of the following is the most dangerous to handle? 0.01 minute 13 days 3 billion years 100 years 0.01 minute 13 days 3 billion years 100 years ANSWER DOWNLOAD EXAMIANS APP
Chemistry Persons working in cement plants and lime stone quarries are prone to disease like Pneumoconiosis Silicosis Asthma Cancer Pneumoconiosis Silicosis Asthma Cancer ANSWER DOWNLOAD EXAMIANS APP
Chemistry Nucleus of an atom consists of. Electron, Proton and Neutron Proton and Neutron Proton Neutron Electron, Proton and Neutron Proton and Neutron Proton Neutron ANSWER DOWNLOAD EXAMIANS APP
Chemistry Natural rubber is a polymer of Vinyl acetate Propene Styrene Isoprene Vinyl acetate Propene Styrene Isoprene ANSWER DOWNLOAD EXAMIANS APP
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