Chemistry The scientist who experimentally proved the existance of positron is Bethe Fermi Anderson Bohr Bethe Fermi Anderson Bohr ANSWER DOWNLOAD EXAMIANS APP
Chemistry Petroleum is a mixture of Hydrocarbons Elements Polymers Salts Hydrocarbons Elements Polymers Salts ANSWER DOWNLOAD EXAMIANS APP
Chemistry The green colour seen in firework displays is due to the chloride salt of : Calcium Barium Sodium Strontium Calcium Barium Sodium Strontium 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 The working of a dry cell is based on Decomposition reaction Combination reaction Electrolysis Spontaneous oxidation-reduction reaction Decomposition reaction Combination reaction Electrolysis Spontaneous oxidation-reduction reaction ANSWER DOWNLOAD EXAMIANS APP
Chemistry Commercial nitric acid is coloured because it contains dissolved : Nitrogen dioxide Nitrous oxide Coloured impurities Oxygen Nitrogen dioxide Nitrous oxide Coloured impurities Oxygen ANSWER DOWNLOAD EXAMIANS APP
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