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