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Chemistry Q64 – JEE-MAIN 2026

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Home Chemistry Organic Chemistry – Some Basic Principles and TechniquesQuestion #474

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Ninja Strategy•Analyze the Alkylation Step

The alkylation with $C H_{3} I$ would increase the carbon count to 10 (mass ~130). Since 118 ( $C_{9} H_{10}$ ) is an option, the alkylation must have failed, implying an internal alkyne was formed in the prior step.

Chemistry Question 64 – JEE-MAIN 2026

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