Chemistry Which one of the following is used for dating very old objects of archaeological importance? Carbon-14 Radium Phosphorus-31 Tritium Carbon-14 Radium Phosphorus-31 Tritium ANSWER DOWNLOAD EXAMIANS APP
Chemistry The product, 9-nitroanthracene is obtained from anthracene by the action of Nitric acid and acetic acid Nitric acid in excess Nitric acid and ethyl alcohol Nitric acid and acetic anhydride Nitric acid and acetic acid Nitric acid in excess Nitric acid and ethyl alcohol Nitric acid and acetic anhydride ANSWER DOWNLOAD EXAMIANS APP
Chemistry Peptization is a process of Protection of colloidal solution Dispersing precipitates into colloidal solution Precipitation of colloidal particles Purification of colloids Protection of colloidal solution Dispersing precipitates into colloidal solution Precipitation of colloidal particles Purification of colloids ANSWER DOWNLOAD EXAMIANS APP
Chemistry Haloarenes are more stable than haloalkanes due to Resonance effect Hyper conjugative effect Inductive effect All of them Resonance effect Hyper conjugative effect Inductive effect All of them ANSWER DOWNLOAD EXAMIANS APP
Chemistry The metal extracted from Bauxite is : Copper Manganese Silver Aluminum Copper Manganese Silver Aluminum ANSWER DOWNLOAD EXAMIANS APP
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