Chemistry Which one of the following minerals is found in pure form? Bauxite Copper Iron Manganese Bauxite Copper Iron Manganese ANSWER DOWNLOAD EXAMIANS APP
Chemistry The product, 9-nitroanthracene is obtained from anthracene by the action of Nitric acid in excess Nitric acid and acetic anhydride Nitric acid and acetic acid Nitric acid and ethyl alcohol Nitric acid in excess Nitric acid and acetic anhydride Nitric acid and acetic acid Nitric acid and ethyl alcohol ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which of the following metals form an amalgam with other metals ? Lead Tin Mercury Zinc Lead Tin Mercury Zinc ANSWER DOWNLOAD EXAMIANS APP
Chemistry The element with highest ionization potential is Oxygen Boron Helium Carbon Oxygen Boron Helium Carbon ANSWER DOWNLOAD EXAMIANS APP
Chemistry The chemical name of 'laughing gas' is Nitric oxide Nitrous oxide Nitrogen dioxide Nitrogen pentoxide Nitric oxide Nitrous oxide Nitrogen dioxide Nitrogen pentoxide ANSWER DOWNLOAD EXAMIANS APP
Chemistry The number of neutrons present in an element having mass number 226 and atomic number 88 is : 88 138 50 314 88 138 50 314 ANSWER DOWNLOAD EXAMIANS APP
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