Chemistry Warming Ammonium chloride with sodium hydrochloride in a test tube is an example of Closed system Isothermal system Isobaric system Open system Closed system Isothermal system Isobaric system Open system ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which one of the following metals pollutes the air of a city having large number of automobiles? Cadmium Chromium Lead Copper Cadmium Chromium Lead Copper ANSWER DOWNLOAD EXAMIANS APP
Chemistry What is the mass percentage of oxygen in carbon dioxide (CO2) 0.658 0.509 0.727 0.305 0.658 0.509 0.727 0.305 ANSWER DOWNLOAD EXAMIANS APP
Chemistry Kinetics is the study of: How fast the reactions go The rate of chemical reaction All of these are correct The mechanisms and paths of the molecules take in joining from one reactant to products How fast the reactions go The rate of chemical reaction All of these are correct The mechanisms and paths of the molecules take in joining from one reactant to products ANSWER DOWNLOAD EXAMIANS APP
Chemistry Sodium vapour lamps glow with yellow colour. This is due to The emission of excess energy absorbed by sodium atoms, in the yellow region of the spectrum The low ionisation energy of sodium Its ability to absorb all other colours except yellow sublimation of sodium to emit yellow colour The emission of excess energy absorbed by sodium atoms, in the yellow region of the spectrum The low ionisation energy of sodium Its ability to absorb all other colours except yellow sublimation of sodium to emit yellow colour ANSWER DOWNLOAD EXAMIANS APP
Chemistry Nitrogen is an essential constituent of all : Vitamins Proteins Fats Carbohydrates Vitamins Proteins Fats Carbohydrates ANSWER DOWNLOAD EXAMIANS APP
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