Chemistry Which one of the following has greatest mass ? Electron Hydrogen nucleus Proton Neutron Electron Hydrogen nucleus Proton Neutron ANSWER DOWNLOAD EXAMIANS APP
Chemistry Copper substances when exposed to air gains a green coating due to the formation of: CuCO3 Cu(OH)2 CuO Cu(NO3)2 CuSO4 CuCO3 Cu(OH)2 CuO Cu(NO3)2 CuSO4 ANSWER DOWNLOAD EXAMIANS APP
Chemistry What are the components responsible for acid rain? Sulphur dioxide (SO2) and Nitrogen oxides (NOx) Nitrogen monoxide (NO) and Carbon monoxide (CO) Carbon dioxide (CO2) and Carbon monoxide (CO) Oxides of carbon (COx) and Oxides of nitrogen (NOx) Sulphur dioxide (SO2) and Nitrogen oxides (NOx) Nitrogen monoxide (NO) and Carbon monoxide (CO) Carbon dioxide (CO2) and Carbon monoxide (CO) Oxides of carbon (COx) and Oxides of nitrogen (NOx) ANSWER DOWNLOAD EXAMIANS APP
Chemistry An acid having basicity one is Sodium phosphate Sodium dihydrogen phosphate Disodium hydrogen phosphate Phosphoric acid Sodium phosphate Sodium dihydrogen phosphate Disodium hydrogen phosphate Phosphoric acid ANSWER DOWNLOAD EXAMIANS APP
Chemistry Pyrethrin used in mosquito coil is obtained from A seed plant A bacterium An insect A fungus A seed plant A bacterium An insect A fungus ANSWER DOWNLOAD EXAMIANS APP
Chemistry The total energy of revolving electron in an atom Will always be positive Can never be positive Cannot be negative Can have any value above zero Will always be positive Can never be positive Cannot be negative Can have any value above zero ANSWER DOWNLOAD EXAMIANS APP
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