Chemistry Brass gets discoloured in air due to constant exposure in presence of: Aluminium sulphide Aluminium phosphide Hydrogen sulphide Hydrogenated wafers Aluminium sulphide Aluminium phosphide Hydrogen sulphide Hydrogenated wafers ANSWER DOWNLOAD EXAMIANS APP
Chemistry Urea is a Phosphatic fertilizer Potassium fertilizer Sodium fertilizer Nitrogenous fertilizer Phosphatic fertilizer Potassium fertilizer Sodium fertilizer Nitrogenous fertilizer ANSWER DOWNLOAD EXAMIANS APP
Chemistry Maximum permissible concentration of copper in drinking water in mg/L is 1 2 0.01 0.05 1 2 0.01 0.05 ANSWER DOWNLOAD EXAMIANS APP
Chemistry Nylon is a type of Polyamide Polyester Polyolefin Acrylic Polyamide Polyester Polyolefin Acrylic ANSWER DOWNLOAD EXAMIANS APP
Chemistry Diamond is lustrous because It is pure Its refractive index is high It is colourless It is hard It is pure Its refractive index is high It is colourless It is hard ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which of the following is used to remove rust stains on cloth? Kerosene Petrol Oxalic acid solution Lime Kerosene Petrol Oxalic acid solution Lime ANSWER DOWNLOAD EXAMIANS APP
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