GATE CY topic:heterocyclic-compounds PYQs & Answers

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topic:heterocyclic-compounds

Attempt a question, record the concept and assumptions, then check the available answer. Rework mistakes after revising the relevant concepts. Topic tags can overlap; review the question context.

Questions 1–3 of 3. Imported answers require independent review unless marked reviewed.

Topic practice 3 questionsPage 1 of 1

The reaction(s) that produce(s) 2-methylindole as the major product is(are)

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

Diagram for Chemistry question 50 (figure 2)

Diagram for Chemistry question 50 (figure 3)

Diagram for Chemistry question 50 (figure 4)

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The reaction(s) that yield(s) 2-methylquinoline as the major product is (are)

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

o-Aminobenzaldehyde; Me-CHO, aqueous NaOH

Diagram for Chemistry question 25 (figure 2)

Aniline; 1. Me–CH=CH–CHO 2. p-TSA, reflux 3. DDQ

Diagram for Chemistry question 25 (figure 3)

2-Methyl-1H-indole; MeLi, CH

Diagram for Chemistry question 25 (figure 4)

1H-Indole-2,3-dione; 1. NaOH 2. MeCOMe 3. H

, heat

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The major products M and N formed in the following reactions are

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Diagram for Chemistry question 18 (figure 2)

Diagram for Chemistry question 18 (figure 3)

Diagram for Chemistry question 18 (figure 4)

Diagram for Chemistry question 18 (figure 5)

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GATE CY topic:heterocyclic-compounds PYQs

How to practice topic:heterocyclic-compounds

Question 50

Question 25

Question 18