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