GATE CY 2025 Paper 1 — page 9

Questions 25–27 of 65. Imported answers require review unless explicitly marked reviewed.

Paper practice 65 questionsPage 9 of 22

The correct option(s) of reagents and reaction sequences suitable for carrying out the following transformation is/are

Your answerSelect all correct options. You can choose more than one.

(i) NBS, (PhCOO)₂; (ii) aq. NaOH; (iii) active MnO₂; (iv) Li/liq. NH₃, t-BuOH

(i) m-CPBA; (ii) BF₃·Et₂O

(i) SeO₂; (ii) Dess-Martin periodinane; (iii) K[ BH(s-Bu)₃] (K-selectride)

(i) dil. KMnO₄; (ii) NaIO₄

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Among the given options, the possible product(s) that can be obtained from the following reaction is/are

Your answerSelect all correct options. You can choose more than one.

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Choose the correct option(s) with regard to mechanism of the following transformation.

Your answerSelect all correct options. You can choose more than one.

It proceeds through divinyl cyclopropane rearrangement.

It involves a diradical intermediate.

It proceeds through di-π-methane rearrangement.

It proceeds through [2+2+2] cycloaddition reaction.

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2025 · Paper 1