Chemistry Brass gets discoloured in air due to constant exposure in presence of: Hydrogenated wafers Hydrogen sulphide Aluminium sulphide Aluminium phosphide Hydrogenated wafers Hydrogen sulphide Aluminium sulphide Aluminium phosphide ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which of the following elements is non-radioactive ? Plutonium Thorium Zirconium Uranium Plutonium Thorium Zirconium Uranium ANSWER DOWNLOAD EXAMIANS APP
Chemistry Chemical name of bleaching powder is : Calcium bi chloride Calcium chlorate Calcium chloro hypochlorite Calcium hypochlorite Calcium bi chloride Calcium chlorate Calcium chloro hypochlorite Calcium hypochlorite ANSWER DOWNLOAD EXAMIANS APP
Chemistry An emulsion is a colloid of a Liquid in a gas Gas in a liquid Gas in a solid Liquid in a liquid Liquid in a gas Gas in a liquid Gas in a solid Liquid in a liquid ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which is not a green house gas ? CO2 N2O CH4 Chlorofluorocarbons CO2 N2O CH4 Chlorofluorocarbons ANSWER DOWNLOAD EXAMIANS APP
Chemistry What is the covalency of nitrogen in ammonia molecule 2 4 5 3 2 4 5 3 ANSWER DOWNLOAD EXAMIANS APP
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