Chemistry Which one of the following metals pollutes the air of a city having large number of automobiles? Copper Chromium Cadmium Lead Copper Chromium Cadmium Lead ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which one of the following contributes largely to the ‘green house effect’ ? Carbon dioxide Carbon monoxide Water vapour Ozone Carbon dioxide Carbon monoxide Water vapour Ozone ANSWER DOWNLOAD EXAMIANS APP
Chemistry The main use of salt in the diet is to increase the solubility of food particles in water make the taste of food better ease the process of cooking produce in small amounts the hydrochloric acid required for the digestion of food increase the solubility of food particles in water make the taste of food better ease the process of cooking produce in small amounts the hydrochloric acid required for the digestion of food ANSWER DOWNLOAD EXAMIANS APP
Chemistry The most abundant element in the earth’s atmosphere is Nitrogen Argon Krypton Oxygen Nitrogen Argon Krypton Oxygen ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which of the following fuels causes minimum environmental pollution? Kerosene Diesel Coal Hydrogen Kerosene Diesel Coal Hydrogen ANSWER DOWNLOAD EXAMIANS APP
Chemistry Maximum permissible concentration of total hardness in drinking water is 50 500 100 200 50 500 100 200 ANSWER DOWNLOAD EXAMIANS APP
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