Chemistry Preparation of ‘Dalda or Vanaspati’ ghee from vegetable oil utilizes the following process : Hydrogenation Oxidation Hydrolysis Ozonolysis Hydrogenation Oxidation Hydrolysis Ozonolysis ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which type of radiations are absorbed by the upper layer of the atmosphere? Radio-waves Visible Infrared Ultraviolet Radio-waves Visible Infrared Ultraviolet ANSWER DOWNLOAD EXAMIANS APP
Chemistry Sour taste of ‘Coca Cola’ is due to the presence of Phosphoric acid Hydrochloric acid Formic acid Acetic acid Phosphoric acid Hydrochloric acid Formic acid Acetic acid ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which of the following is an iron ore ? Magnetite Lignite Nitrite Bauxite Magnetite Lignite Nitrite Bauxite ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which one of the following is used for dating very old objects of archaeological importance? Radium Carbon-14 Tritium Phosphorus-31 Radium Carbon-14 Tritium Phosphorus-31 ANSWER DOWNLOAD EXAMIANS APP
Chemistry The product, 9-nitroanthracene is obtained from anthracene by the action of 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 Nitric acid and acetic acid ANSWER DOWNLOAD EXAMIANS APP
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