GATE CY Stereochemistry PYQs & Answers — Page 2

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Questions 11–20 of 33. Imported answers require independent review unless marked reviewed.

Topic practice 33 questionsPage 2 of 4

The correct statement(s) regarding P, Q, R, and S is (are):

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

P reacts faster than Q with PhSNa in DMF as a solvent.

Q reacts faster than P with NaN₃ in DMF as a solvent.

R reacts faster than S when treated with TsCl/Et₃N in DCM as a solvent.

R gets oxidized faster than S when reacted with CrO₃ in DCM as a solvent.

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The correct statement(s) about the relationship for the H-atoms in the following compounds is (are):

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H₁ and H₃ are enantiotopic; H₂ and H₃ are diastereotopic.

H₁ and H₃ are diastereotopic; H₂ and H₃ are enantiotopic.

H₅ and H₇ are enantiotopic; H₆ and H₇ are homotopic.

H₅ and H₇ are homotopic; H₆ and H₇ are enantiotopic.

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The topicity relationship of Hₐ and Hᵦ in X, Y and Z are, respectively,

Your answerChoose one option.

Diastereotopic, Homotopic and Enantiotopic

Homotopic, Enantiotopic and Enantiotopic

Homotopic, Homotopic and Enantiotopic

Diastereotopic, Enantiotopic and Homotopic

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M and N in the given reaction scheme are

Your answerChoose one option.

Diagram for Chemistry question 39 (figure 2)

Diagram for Chemistry question 39 (figure 3)

Diagram for Chemistry question 39 (figure 4)

Diagram for Chemistry question 39 (figure 5)

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The stereomer(s) of G giving the depicted product is(are)

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Diagram for Chemistry question 49 (figure 2)

Diagram for Chemistry question 49 (figure 3)

Diagram for Chemistry question 49 (figure 4)

Diagram for Chemistry question 49 (figure 5)

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The reaction(s) in which inversion of configuration occur(s) is(are)

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

Diagram for Chemistry question 51 (figure 2)

Diagram for Chemistry question 51 (figure 3)

Diagram for Chemistry question 51 (figure 4)

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The major products P and Q in the following reaction sequence are

Your answerChoose one option.

P =

Diagram for Chemistry question 40 (figure 2)

; Q =

Diagram for Chemistry question 40 (figure 3)

P =

Diagram for Chemistry question 40 (figure 4)

; Q =

Diagram for Chemistry question 40 (figure 5)

P =

Diagram for Chemistry question 40 (figure 6)

; Q =

Diagram for Chemistry question 40 (figure 7)

P =

Diagram for Chemistry question 40 (figure 8)

; Q =

Diagram for Chemistry question 40 (figure 9)

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The difference between the number of gauche-butane interactions present in P and Q is

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Among the following eight compounds,

the number of compound(s) which can exhibit stereoisomerism is ______.

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The major product formed in the reaction of (2R,3R)-2-bromo-3-methylpentane with NaOMe is:

Your answerChoose one option.

(Z)-3-methylpent-2-ene

(E)-3-methylpent-2-ene

(2R,3R)-2-methoxy-3-methylpentane

(2S,3R)-2-methoxy-3-methylpentane

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GATE CY Stereochemistry PYQs

Question 52

Question 55

Question 16

Question 39

Question 49

Question 51

Question 40

Question 57

Question 20

Question 38