Hydrocarbon 'A' reacts with KMnO4 under neutral conditions at room temperature to form only a diketone, . The hydrocarbon is

Question

Hydrocarbon 'A' reacts with KMnO4 under neutral conditions at room temperature to form only a diketone, Question

. The hydrocarbon is (A) CH3C≡ CCH2CH2CH2CH3 (B) HC≡ CCH2CH2CH2CH2CH3 (C) Option 3

(D) CH3CH2C≡ CCH2CH2CH3

Tardigrade Admin · Accepted Answer

Since diketone is produced, therefore, the hydrocarbon must be an alkyne. The structure of diketone shows that triple bonded carbons are

- C^{3} \equiv C^{4} -

. Hence, the alkyne is

C H_{3} C H_{2} C \equiv CC H_{2} C H_{2} C H_{3} .

Q. Hydrocarbon 'A' reacts with $K M n O_{4}$ under neutral conditions at room temperature to form only a diketone, . The hydrocarbon is