Chemistry Main source of lead pollution is from Sewage Insecticides Tobacco Leaded gasoline Sewage Insecticides Tobacco Leaded gasoline 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 Galena is a mineral of Gold Lead Iron Calcium Gold Lead Iron Calcium ANSWER DOWNLOAD EXAMIANS APP
Chemistry The substance which does not expand on going from liquid state to solid state is Type metal Cast-iron Aluminium Water Type metal Cast-iron Aluminium Water ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which of the following electrodes is used in strongly alkaline solution Silver - silver chloride electrode Mercury - mercuric oxide electrode Mercury - mercurous sulphate electrode Mercury - mercurous chloride electrode Silver - silver chloride electrode Mercury - mercuric oxide electrode Mercury - mercurous sulphate electrode Mercury - mercurous chloride electrode ANSWER DOWNLOAD EXAMIANS APP
Chemistry Brass gets discoloured in air due to constant exposure in presence of: Aluminium phosphide Hydrogenated wafers Hydrogen sulphide Aluminium sulphide Aluminium phosphide Hydrogenated wafers Hydrogen sulphide Aluminium sulphide ANSWER DOWNLOAD EXAMIANS APP
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