Chemistry Copper substances when exposed to air gains a green coating due to the formation of: CuO CuCO3 Cu(OH)2 CuSO4 Cu(NO3)2 CuO CuCO3 Cu(OH)2 CuSO4 Cu(NO3)2 ANSWER DOWNLOAD EXAMIANS APP
Chemistry Bakelite is a co-polymer of Phenol and Cinnaldehyde Acetaldehyde Benzaldehyde Formaldehyde Cinnaldehyde Acetaldehyde Benzaldehyde Formaldehyde ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which of the following is not a greenhouse gas ? Chlorofluorocarbon Hydrogen Nitric oxide Carbon dioxide Chlorofluorocarbon Hydrogen Nitric oxide Carbon dioxide ANSWER DOWNLOAD EXAMIANS APP
Chemistry Sodium bicarbonate is commercially known as Soda lime Baking soda Caustic soda Washing soda Soda lime Baking soda Caustic soda Washing soda ANSWER DOWNLOAD EXAMIANS APP
Chemistry The major harmful gas emitted by automobile vehicles which causes air pollution is Carbon Monoxide Ozone gas Methane Carbon dioxide Carbon Monoxide Ozone gas Methane Carbon dioxide ANSWER DOWNLOAD EXAMIANS APP
Chemistry Now-a-days yellow lamps are frequently used as street lights. Which of the following gases is used in these lamps ? Nitrogen Hydrogen Neon Sodium Nitrogen Hydrogen Neon Sodium ANSWER DOWNLOAD EXAMIANS APP
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