GATE CY year:2023 PYQs & Answers — Page 4

Questions 31–40 of 65. Imported answers require independent review unless marked reviewed.

Topic practice 65 questionsPage 4 of 7

The acetolysis product(s) of the given reaction is(are)

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

Diagram for Chemistry question 31 (figure 2)

Diagram for Chemistry question 31 (figure 3)

Diagram for Chemistry question 31 (figure 4)

Diagram for Chemistry question 31 (figure 5)

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Product(s) formed in the given reaction is(are)

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Diagram for Chemistry question 32 (figure 2)

Diagram for Chemistry question 32 (figure 3)

Diagram for Chemistry question 32 (figure 4)

Diagram for Chemistry question 32 (figure 5)

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The choice(s) that correctly identify radionuclides (P, Q, R, S) shown in the following nuclear reaction is(are)

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

P =

Q =

R =

S =

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For the Lindemann-Hinshelwood mechanism of gas phase unimolecular reactions, the true statement(s) is(are)

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Only molecules with three or more atoms can follow the Lindemann-Hinshelwood mechanism

Lindemann-Hinshelwood mechanism involves bimolecular elementary steps

The overall reaction is of second order at low pressure

The overall reaction is of second order at high pressure

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The calculated magnetic moment of

is ______ BM. (rounded off to two decimal places)

(Given: atomic number of Ce is 58)

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A compound,

, has the following spectral data;

NMR (ppm): 9.16 (s), 6.89 (d,

Hz), 6.64 (d,

Hz), 1.53 (s)

NMR (ppm): 154.7, 140.9, 127.1, 114.4, 40.7, 30.7

The structure of the compound is

Your answerChoose one option.

Diagram for Chemistry question 36 (figure 2)

Diagram for Chemistry question 36 (figure 3)

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The major product formed in the given reaction sequence is

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Diagram for Chemistry question 37 (figure 2)

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E and F in the given reaction scheme are

Your answerChoose one option.

Diagram for Chemistry question 38 (figure 2)

Diagram for Chemistry question 38 (figure 3)

Diagram for Chemistry question 38 (figure 4)

Diagram for Chemistry question 38 (figure 5)

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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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In the

H NMR spectrum, multiplicity of the signal (bold and underlined H atom) in the following species is

(I) [HNi(OPEt

)

]

(II) Ph

Si(Me)H (III) PH

(IV) (Cp*)

ZrH

(Cp* = pentamethylcyclopentadienyl)

Your answerChoose one option.

I- pentet, II- quartet, III- doublet and IV- singlet

I- pentet, II- singlet, III- singlet and IV- doublet

I- triplet, II- triplet, III- doublet and IV- doublet

I- singlet, II- quartet, III- singlet and IV- singlet

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GATE CY year:2023 PYQs

Question 31

Question 32

Question 33

Question 34

Question 35

Question 36

Question 37

Question 38

Question 39

Question 40