Chemistry Brass gets discoloured in air due to constant exposure in presence of: Aluminium phosphide Hydrogenated wafers Aluminium sulphide Hydrogen sulphide Aluminium phosphide Hydrogenated wafers Aluminium sulphide Hydrogen sulphide ANSWER DOWNLOAD EXAMIANS APP
Chemistry When a bond is formed between two atoms, the energy of the system will Decrease Remain the same May increase or decrease Increase Decrease Remain the same May increase or decrease Increase ANSWER DOWNLOAD EXAMIANS APP
Chemistry Normal rainwater is slightly acidic due to the presence of Sulphur dioxide Methane Carbon dioxide None of these Sulphur dioxide Methane Carbon dioxide None of these ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which one of the following is not a fertilizer? Calcium sulphate Potassium nitrate Ammonium sulphate Calcium ammonium nitrate Calcium sulphate Potassium nitrate Ammonium sulphate Calcium ammonium nitrate ANSWER DOWNLOAD EXAMIANS APP
Chemistry Ozone consists of Oxygen only Oxygen and Nitrogen Hydrogen and Carbon Oxygen and Carbon Oxygen only Oxygen and Nitrogen Hydrogen and Carbon Oxygen and Carbon ANSWER DOWNLOAD EXAMIANS APP
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