Question

✓ 13) Which of the following is a not a five membered ring?
Pyridine
O Pyrrole
ООО
O Furan
Thiophers​

Answer 1

(A) Pyridine is the answer

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Answer 2

Pyridine is not five membered ring

Explanation:

• Pyridine is heterocyclic compound that's is basic in nature.
• It is parent compound of sophistication Pyridines.
• Pyridine has five carbons, one nitrogen and five hydrogen atoms forms rings with alternative double bonds.
• Pyridine is aromatic compound(stable) which contains amino group have same structure as  that of benzene, with methine group(=CH-) is replaced by nitrogen atom.
• Pyridine is obvious colorless to light yellow liquid with nauseating odor. Nitrogen is more electronegative than carbon, hence it withdraw electrons rather than sharing it.