Chemistry The green colour seen in firework displays is due to the chloride salt of : Strontium Calcium Sodium Barium Strontium Calcium Sodium Barium ANSWER DOWNLOAD EXAMIANS APP
Chemistry Kinetics is the study of: All of these are correct The rate of chemical reaction How fast the reactions go The mechanisms and paths of the molecules take in joining from one reactant to products All of these are correct The rate of chemical reaction How fast the reactions go The mechanisms and paths of the molecules take in joining from one reactant to products ANSWER DOWNLOAD EXAMIANS APP
Chemistry Dry powder fire extinguishers contain Sand and potassium carbonate Sand and sodium bicarbonate Sand and sodium carbonate Sand Sand and potassium carbonate Sand and sodium bicarbonate Sand and sodium carbonate Sand ANSWER DOWNLOAD EXAMIANS APP
Chemistry When a lead storage battery is discharged, Lead sulphate is consumed Lead is formed Sulphuric acid is consumed SO2 is evolved Lead sulphate is consumed Lead is formed Sulphuric acid is consumed SO2 is evolved ANSWER DOWNLOAD EXAMIANS APP
Chemistry The total energy of revolving electron in an atom Cannot be negative Will always be positive Can have any value above zero Can never be positive Cannot be negative Will always be positive Can have any value above zero Can never be positive ANSWER DOWNLOAD EXAMIANS APP
Chemistry Nucleons are regarded as composites sub-particles known as Mesons Leptons Quarks Photons Mesons Leptons Quarks Photons ANSWER DOWNLOAD EXAMIANS APP