MHT CET Chemistry question

The compound which contains all the four 1°, 2°, 3° and 4° carbon atoms is

(A)2, 3-dimethylpentane
(B)3-chloro-2, 3-dimethylpentaneCorrect
(C)2, 3, 4-trimethylpentane
(D)3, 3-dimethylpentane

Answer: (B)

Solution

A 1°, 2°, 3°, 4° carbon is attached to one, two, three, four other groups respectively. In (b) the carbons are CH3 (1°), CH2 (2°), CH(CH3)2 (3°) and C-3, which bears four substituents

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Question ID VK-076667