Nitration of Paraffinic Hydrocarbons MCQ

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• 2RCH2CH2 + NO2 ——–> HNO2 + RCH=CH2 what is the name of this reaction?
  ক

  Paraffin formation

  খ

  Olefin formation

  গ

  All of the mentioned

  ঘ

  None of the mentioned
• 9.The Liquid phase nitration is of less importance than the gas phase nitration because of ?
  ক

  Low yield

  খ

  Lower conversion

  গ

  Occurrence of unwanted side reactions

  ঘ

  All of the mentioned
• What is an Alkyl radical?
  ক

  -CH3

  খ

  -C2H5

  গ

  -C3H7

  ঘ

  All of the mentioned
• The temperature coefficients for hydrogen substitution are in the order primary > Secondary > Tertiary.
  ক

  True

  খ

  False
• Reaction increases when Carbon chain becomes more branched?
  ক

  True

  খ

  False
• What effect does Bromine has on yield and conversion of nitric acid to nitro paraffins?
  ক

  Positive

  খ

  Negative

  গ

  Inert

  ঘ

  Does not affect
• How do we increase yield?
  ক

  Getting optimum temperature

  খ

  Decreasing the activation energy

  গ

  Increasing the surface: volume ratio of reactor

  ঘ

  All of the mentioned
• What do you mean by Optimum temperature?
  ক

  Least temperature at which the reaction starts

  খ

  Average temperature to produce desired product

  গ

  Temperature at which we get maximum yield

  ঘ

  All of the mentioned
• The nitration in paraffinic produces ?
  ক

  Mononitroparaffins

  খ

  Dinitroparaffins

  গ

  Trinitroparaffins

  ঘ

  All of the mentioned
• The paraffinic are affected by the attack of ?
  ক

  Electrophile

  খ

  Nucleophile

  গ

  Free radical

  ঘ

  All of the mentioned