Chemistry Zone refining is used for the purification of Ag Ge Au Cu Ag Ge Au Cu ANSWER DOWNLOAD EXAMIANS APP
Chemistry The high reactivity of fluorine is due to its high electro negativity availability of d-orbitals small size of fluorine atom strong F - F bond its high electro negativity availability of d-orbitals small size of fluorine atom strong F - F bond ANSWER DOWNLOAD EXAMIANS APP
Chemistry The product, 9-nitroanthracene is obtained from anthracene by the action of Nitric acid and acetic anhydride Nitric acid in excess Nitric acid and acetic acid Nitric acid and ethyl alcohol Nitric acid and acetic anhydride Nitric acid in excess Nitric acid and acetic acid Nitric acid and ethyl alcohol ANSWER DOWNLOAD EXAMIANS APP
Chemistry The quality of petrol is expressed in terms of Gold number Octane number Added unlead compounds Cetane number Gold number Octane number Added unlead compounds Cetane number ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which one of the following statement is correct ?Ozone is found in the earth's atmosphere mostly between 50 and 100 km 5 and 10 km 10 and 20 km 20 and 50 km 50 and 100 km 5 and 10 km 10 and 20 km 20 and 50 km ANSWER DOWNLOAD EXAMIANS APP
Chemistry Photo-oxidation process is initiated by Oxygen Heat Catalyst Light Oxygen Heat Catalyst Light ANSWER DOWNLOAD EXAMIANS APP
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