Q. Oxidation of pyrrole in presence of chromium oxide (Cr2O3) and acetic acid produce_______.
✅ Correct Answer: (A)
Maleinimide
Pharmaceutical Organic Chemistry 3 MCQs and Notes
Q. Pyrrole undergoes iodination in presence of Iodine and potassium iodide to produce_____.
✅ Correct Answer: (C)
Tetra iodo pyrrole
Q. Pyrrole undergoes sulfonation in presence of _______to produce pyrrole – 2 – sulfonic acid.
✅ Correct Answer: (B)
SO3 and pyridine
Q. Which statement about thiophene is incorrect?
✅ Correct Answer: (D)
Thiophene is more reactive than furan
Q. If you wanted to form 2,3,4,5-tetrabromopyrrole from pyrrole, which of the following conditions would be the best choice?
✅ Correct Answer: (C)
Br2 in the presence of radical initiator
Q. Nitration of pyrrole is best carried out using:
✅ Correct Answer: (A)
Acetyl nitrate
Q. Electrophilic substitution in furan usually occurs at:
✅ Correct Answer: (C)
The C2 atom
Q. What is the correct order of reactivity (most reactive first) of pyrrole, furan and thiophene towards electrophiles?
✅ Correct Answer: (B)
Pyrrole > Furan > Thiophene
Q. Which of the followings statements is correct?
✅ Correct Answer: (C)
Pyridine is tertiary amine
Q. Which of the following solvents is a heterocyclic compound?
✅ Correct Answer: (C)
THF