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JEE Advanced levelSingle correct optionDifficulty 3 of 3nm157

The total number of saturated acyclic structural isomers of $C X_{5} H X_{12} O$ (alcohols plus ethers, no stereoisomers) is

A12
B15
C13
D14

Answer: D

Alcohols = 8 (the eight

C X_{5} H X_{11}

groups). Ethers: methyl with the four butyl groups (4) and ethyl with the two propyl groups (2) = 6. Total 8 + 6 = 14.

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