NEET UG CHEMISTRY MCQ: HYDROCARBONS

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Analyzing +4 | -1

Which will give cyclooctyne when treated with base?

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Correct option: C

1,1-dibromocyclooctane

Option C is correct because 1,1-dibromocyclooctane can undergo two successive dehydrohalogenation reactions in the presence of a strong base to form cyclooctyne. The geminal dibromide is necessary for the elimination to form the cyclic alkyne.

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