Chemistry Dry ice is the solid form of : Water Carbon di–oxide Nitrogen Air Water Carbon di–oxide Nitrogen Air ANSWER DOWNLOAD EXAMIANS APP
Chemistry The atomic number of carbon is 6 and its atomic mass is 12. How many are there protons in the nucleus of carbon ? 12 Zero 6 18 12 Zero 6 18 ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which one of the following is not a ‘green house gas’ ? Carbon dioxide Chlorofluorocarbons Nitrogen Methane Carbon dioxide Chlorofluorocarbons Nitrogen Methane ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which of the following in automobile exhaust can cause cancer? Lead Polyclinic hydrocarbons Oxides of nitrogen Carbon monoxide Lead Polyclinic hydrocarbons Oxides of nitrogen Carbon monoxide ANSWER DOWNLOAD EXAMIANS APP
Chemistry A non-electronic conductor is Gas Carbon None of these Copper Sulphate Iron Gas Carbon None of these Copper Sulphate Iron ANSWER DOWNLOAD EXAMIANS APP
Chemistry Commercial nitric acid is coloured because it contains dissolved : Oxygen Nitrogen dioxide Coloured impurities Nitrous oxide Oxygen Nitrogen dioxide Coloured impurities Nitrous oxide ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS