Chemistry Ultra purification of a metal is done by : Leaching Slugging Smelting Zone melting Leaching Slugging Smelting Zone melting ANSWER DOWNLOAD EXAMIANS APP
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 Which of the following is not present in German-silver? Nickel Zinc Silver Copper Nickel Zinc Silver Copper ANSWER DOWNLOAD EXAMIANS APP
Chemistry Haloarenes are more stable than haloalkanes due to All of them Hyper conjugative effect Inductive effect Resonance effect All of them Hyper conjugative effect Inductive effect Resonance effect ANSWER DOWNLOAD EXAMIANS APP
Chemistry The unit of ionic product of water (Kw) is : Mol2 let-2 Mol-1 let-2 Mol2 let-1 Mol-1 let-1 Mol2 let-2 Mol-1 let-2 Mol2 let-1 Mol-1 let-1 ANSWER DOWNLOAD EXAMIANS APP