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Q. Which of the following does not decolourise bromine solution in carbon disulphide………..

Q. Reduction of Aldehydes and Ketones to hydrocarbon take place in the presence of ……………

Q. Petroleum is mainly a mixture of………..

Q. General formula of primary alcohol is …….

Q. Propane is obtained from propene, by which of the following methods……….

Q. Octane number has 0 value for……….

Q. Which of the following statements regarding chemical properties of acetophenone are wrong…… (1) It is reduced to methyl phenyl carbinol by sodium and ethanol (2) It is oxidised to benzoic acid with acidified KMnO4 (3) It does not undergo iodoform electrophilic substitution like nitration at meta position (4) It does not undergo iodoform reaction with iodine and alkali

Q. In the fractional distillation of crude petroleum………..

Q. Knocking sound occurs in engine when fuel……….

Q. The -OH group of methyl alcohol cannot be replaced by chlorine by the action of……