GATE XL Structure-Reactivity Correlations and Organic Reaction Mechanisms PYQs & Answers

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Structure-Reactivity Correlations and Organic Reaction Mechanisms

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Questions 1–10 of 43. Imported answers require independent review unless marked reviewed.

Topic practice 43 questionsPage 1 of 5

The major product formed in the following reaction is

Your answerChoose one option.

Diagram for Life Sciences question 13 (figure 2)

Diagram for Life Sciences question 13 (figure 3)

Diagram for Life Sciences question 13 (figure 4)

Diagram for Life Sciences question 13 (figure 5)

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The total number of distinct stereoisomers for the following compound is ________ (in integer).

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The major products P and Q obtained in the following reactions are

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P =

Diagram for Life Sciences question 21 (figure 2)

; Q =

Diagram for Life Sciences question 21 (figure 3)

P =

Diagram for Life Sciences question 21 (figure 4)

; Q =

Diagram for Life Sciences question 21 (figure 5)

P =

Diagram for Life Sciences question 21 (figure 6)

; Q =

Diagram for Life Sciences question 21 (figure 7)

P =

Diagram for Life Sciences question 21 (figure 8)

; Q =

Diagram for Life Sciences question 21 (figure 9)

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The major product formed in the following two-step transformation is (Note: Ts = tosyl and Ac = acetyl)

Your answerChoose one option.

Diagram for Life Sciences question 22 (figure 2)

Diagram for Life Sciences question 22 (figure 3)

Diagram for Life Sciences question 22 (figure 4)

Diagram for Life Sciences question 22 (figure 5)

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The rate of solvolysis for the following tertiary halides in 80% aqueous ethanol at 25 °C follows the order

Your answerChoose one option.

I < II < III

II < III < I

II < I < III

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The CORRECT statement(s) regarding the given molecules is(are)

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Both I and II are achiral molecules.

Both II and III are chiral molecules.

IV is a chiral molecule.

Both II and IV are chiral molecules.

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The CORRECT statement(s) for the given reactions is(are)

Reactions:

I) Me–CH(Me)–CHO + i) MeMgBr; ii) H₃O⁺ →

II) MeCHO + i) ⁱPrMgBr; ii) H₃O⁺ →

III) Me–CH(Me)–CO₂Me + i) MeMgBr (excess); ii) H₃O⁺ →

IV) Me₂CO + i) ⁱPrMgBr; ii) H₃O⁺ →

Possible products: P: Me–C(OH)(Me)–CH₂Me Q: Me–C(OH)(Me)–CH(Me)₂ R: Me–CH(Me)–CO₂Me

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P is formed as the major product in reaction I.

P is formed as the major product in reaction II.

Q is formed as the major product in reaction IV.

R is formed as the major product in reaction III.

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The CORRECT order of acidity of the following compounds is

Your answerChoose one option.

I > II > III

II > III > I

I > III > II

III > II > I

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The molecules A and B are a pair of ____________.

Your answerChoose one option.

enantiomers

diastereomers

conformational isomers

constitutional isomers

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The CORRECT option(s) of Y for the following reaction is/are

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Diagram for Life Sciences question 16 (figure 2)

Diagram for Life Sciences question 16 (figure 3)

Diagram for Life Sciences question 16 (figure 4)

Diagram for Life Sciences question 16 (figure 5)

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GATE XL Structure-Reactivity Correlations and Organic Reaction Mechanisms PYQs

How to practice Structure-Reactivity Correlations and Organic Reaction Mechanisms

Question 13

Question 17

Question 21

Question 22

Question 11

Question 17

Question 22

Question 14

Question 15

Question 16