Source of Pyridine Compounds MCQ

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• Which of the following catalyst can be used in the synthesis of pyridine by Bönnemann cyclization?
  ক

  Vanadium oxide

  খ

  Nickel based catalyst

  গ

  Silver or platinum-based catalyst

  ঘ

  Cobalt catalyst
• What is the name reaction of the following reaction?
  ক

  Chichibabin synthesis

  খ

  Dealkylation of alkylpyridines

  গ

  Hantzsch pyridine synthesis

  ঘ

  Bönnemann cyclization
• Which of the following reagent can’t be used as the reagent in the dealkylation of alkylpyridines in the pyridine synthesis?
  ক

  Vanadium oxide

  খ

  Nickel based catalyst

  গ

  Silver or platinum-based catalyst

  ঘ

  Copper catalyst
• In the synthesis of pyridine by Chichibabin synthesis, synthesis of acroloien is done which method?
  ক

  Knoevenagel Condensation

  খ

  Aldol condensation

  গ

  Dieckmann condensation

  ঘ

  Claisen condensation
• What is the name of the reaction given below when condensation of acrolein and acetaldehyde take place?
  ক

  Chichibabin synthesis

  খ

  Dealkylation of alkylpyridine

  গ

  Hantzsch pyridine synthesis

  ঘ

  Bonnemann cyclisation
• Which of the following derivative of pyridine is mostly found in mammals?
  ক

  Nicotinamide

  খ

  Vitamin B6

  গ

  Nicotinic acid

  ঘ

  Strychnine
• Mycobacterium tuberculosis and Escherichia coli produce nicotinic acid by condensation of which of the following compounds?
  ক

  Glyceraldehyde 3-phosphate

  খ

  Amino acid

  গ

  Pyrrole

  ঘ

  acetylene
• Which of the following derivative of pyridine is mostly found in mycobacterium tuberculosis?
  ক

  Niacin

  খ

  Nicotinamide

  গ

  Nicotinic acid

  ঘ

  Strychnine
• Why is extraction of pyridine from coal tar or as a byproduct of coal gasification ineffective?
  ক

  Less concentration of desired compound

  খ

  This method is expensive

  গ

  Reactive is rare

  ঘ

  Dangerous procedure
• Which of the following plant is the natural source of pyridine?
  ক

  Atropa belladonna

  খ

  Ocimum tenuiflorum

  গ

  Azadirachta indica

  ঘ

  Ficus religiose