Organic Chemistry Quiz

Pyrrole is a:

• Six-membered ring

• Five-membered ring

• Benzene derivative

• Non-aromatic compound

The Paal-Knorr synthesis is used to prepare:

• Benzene

• Furan

• Pyrrole

• Pyridine

Thiophene can be synthesized from:

• Succinimide

• Acetylene

• Mucic acid

• Pentosan

The heteroatom in furan is:

• Nitrogen

• Oxygen

• Sulfur

• Carbon

Quinoline is synthesized by:

• Paal-Knorr synthesis

• Bischler–Napieralski synthesis

• Skraup synthesis

• Diels-Alder reaction

Isoquinoline is formed by:

• Friedlander synthesis

• Skraup reaction

• Bischler–Napieralski reaction

• Claisen rearrangement

Which of the following is a six-membered heterocycle?

• Pyrrole

• Furan

• Pyridine

• Thiophene

Furan is obtained from:

• Mucic acid

• Skraup synthesis

• Acetylene

• None

The aromaticity in pyrrole is due to:

• Lone pair on nitrogen participating in delocalization

• Double bond on nitrogen

• Planarity of ring

• π-electrons from carbon only

Which is the correct order of reactivity towards electrophilic substitution?

• Pyridine > Pyrrole > Thiophene

• Pyrrole > Furan > Thiophene

• Furan > Pyrrole > Thiophene

• Pyrrole > Thiophene > Furan