Chemistry Ozone depletion in the atmosphere is mainly caused by Sulphur dioxide Nitrogen dioxide Hydrogen sulphide Chlorofluorocarbon Sulphur dioxide Nitrogen dioxide Hydrogen sulphide Chlorofluorocarbon ANSWER DOWNLOAD EXAMIANS APP
Chemistry Maximum permissible concentration of copper in drinking water in mg/L is 0.05 1 2 0.01 0.05 1 2 0.01 ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which gas does not form the part of atmosphere ? Helium None of these Nitrogen Chlorine Helium None of these Nitrogen Chlorine ANSWER DOWNLOAD EXAMIANS APP
Chemistry Nucleons are regarded as composites sub-particles known as Quarks Photons Mesons Leptons Quarks Photons Mesons Leptons ANSWER DOWNLOAD EXAMIANS APP
Chemistry Submarines move under water. They have engines that run on Steam Petrol and oxygen Batteries Diesel Steam Petrol and oxygen Batteries Diesel ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which one of the following species has the highest bond order, shortest bond length and maximum bond strength O2 O-2 O+2 O-22 O2 O-2 O+2 O-22 ANSWER DOWNLOAD EXAMIANS APP
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