Q. In the structure of $4$ -isopropyl- $2, 4, 5$ -trimethylheptane, number of $1^{\circ}, 2^{\circ}$ , and $3^{\circ} H$ 's are, respectively

90 117 Organic Chemistry – Some Basic Principles and Techniques Report Error

A

$18, 5, 4$

B

$21, 4, 3$

C

$18, 4, 3$

D

$21, 5, 4$

Solution:

Correct answer is (b) $21, 4, 3$

Solution Image