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JEE Advanced levelOne or more correct optionsDifficulty 3 of 3nm213

Which of the following statements about open-chain isomers of $C X_{5} H X_{12} O$ (alcohols and ethers, structural isomers only) is/are correct?

AThere are 14 isomers in total (alcohols plus ethers)
BThere are 5 primary alcohols
CThere are 3 secondary alcohols
DThere are 2 tertiary alcohols

Answer: A, C

Alcohols: 4 primary, 3 secondary, 1 tertiary (total 8); ethers: 6. Total 14. Correct: A, C.

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