Chemistry Copper substances when exposed to air gains a green coating due to the formation of: CuCO3 Cu(OH)2 CuSO4 CuO Cu(NO3)2 CuCO3 Cu(OH)2 CuSO4 CuO Cu(NO3)2 ANSWER DOWNLOAD EXAMIANS APP
Chemistry The liquid waste from kitchens and baths, of residences is known as : Domestic sewage Storm water Refuse Sullage Domestic sewage Storm water Refuse Sullage ANSWER DOWNLOAD EXAMIANS APP
Chemistry The major harmful gas emitted by automobile vehicle which causes air pollution is Methane Ozone gas Carbon Monoxide Carbon dioxide Methane Ozone gas Carbon Monoxide Carbon dioxide ANSWER DOWNLOAD EXAMIANS APP
Chemistry An element of atomic no. 29 belongs to P-block D-block S-block F-block P-block D-block S-block F-block ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which of the following is a commercial source of energy? Sun Natural gas Agricultural waste Dried dung Sun Natural gas Agricultural waste Dried dung ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which one is heaviest naturally-occurring element of the periodic element Uranium Thorium Rhodium Iron Uranium Thorium Rhodium Iron ANSWER DOWNLOAD EXAMIANS APP
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