Organic Chemistry Questions and Answers – Source of Pyridine Compounds | Organic Chemistry Multiple Choice Questions and Answers

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Questions
1 Which of the following plant is the natural source of pyridine?
A Atropa belladonna
B Ocimum tenuiflorum
C Azadirachta indica
D Ficus religiose

Answer:Atropa belladonna
2 Why is extraction of pyridine from coal tar or as a byproduct of coal gasification ineffective?
A Less concentration of desired compound
B This method is expensive
C Reactive is rare
D Dangerous procedure

Answer:Less concentration of desired compound
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3 Which of the following derivative of pyridine is mostly found in mycobacterium tuberculosis?
A Niacin
B Nicotinamide
C Nicotinic acid
D Strychnine

Answer:Nicotinic acid
4 Mycobacterium tuberculosis and Escherichia coli produce nicotinic acid by condensation of which of the following compounds?
A Glyceraldehyde 3-phosphate
B Amino acid
C Pyrrole
D acetylene

Answer:Pyrrole
5 Which of the following derivative of pyridine is mostly found in mammals?
A Nicotinamide
B Vitamin B6
C Nicotinic acid
D Strychnine

Answer:Nicotinic acid
6 Mycobacterium tuberculosis and Escherichia coli produce nicotinic acid by condensation of which of the following compounds?
A Glyceraldehyde 3-phosphate
B Kynurenine
C Pyrrole
D Tryptophan

Answer:Pyrrole
7 What is the name of the reaction given below when condensation of acrolein and acetaldehyde take place?

Organic Chemistry

A Chichibabin synthesis
B Dealkylation of alkylpyridine
C Hantzsch pyridine synthesis
D Bonnemann cyclisation

Answer:Chichibabin synthesis
8 In the synthesis of pyridine by Chichibabin synthesis, synthesis of acroloien is done which method?
A Knoevenagel Condensation
B Aldol condensation
C Dieckmann condensation
D Claisen condensation

Answer:Knoevenagel Condensation
9 Which of the following reagent can’t be used as the reagent in the dealkylation of alkylpyridines in the pyridine synthesis?
A Vanadium oxide
B Nickel based catalyst
C Silver or platinum-based catalyst
D Copper catalyst

Answer:Copper catalyst
10 Which of the following catalyst can be used in the synthesis of pyridine by Bönnemann cyclization?
A Vanadium oxide
B Nickel based catalyst
C Silver or platinum-based catalyst
D Cobalt catalyst

Answer:Cobalt catalyst

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