Chemistry Copper substances when exposed to air gains a green coating due to the formation of: CuO Cu(NO3)2 CuSO4 CuCO3 Cu(OH)2 CuO Cu(NO3)2 CuSO4 CuCO3 Cu(OH)2 ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which gas does not form the part of atmosphere ? Chlorine Nitrogen None of these Helium Chlorine Nitrogen None of these Helium ANSWER DOWNLOAD EXAMIANS APP
Chemistry Activated Charcoal is used to remove colouring matter from pure substances by Oxidation Bleaching Reduction Adsorption Oxidation Bleaching Reduction Adsorption ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which of the following fibres catches fire least ? Terricot Rayon Nylon Cotton Terricot Rayon Nylon Cotton ANSWER DOWNLOAD EXAMIANS APP
Chemistry The gas that is used in the manufacture of vanaspati ghee is : Nitrogen Carbon dioxide Oxygen Hydrogen Nitrogen Carbon dioxide Oxygen Hydrogen ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which one of the following does not contain Silver ? Ruby Silver Horn Silver Lunar Caustic German Silver Ruby Silver Horn Silver Lunar Caustic German Silver ANSWER DOWNLOAD EXAMIANS APP
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