GATE CY exam:gate PYQs & Answers — Page 10

Questions 91–100 of 650. Imported answers require independent review unless marked reviewed.

Topic practice 650 questionsPage 10 of 65

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.

Diagram for Chemistry question 26 (figure 2)

Diagram for Chemistry question 26 (figure 3)

Diagram for Chemistry question 26 (figure 4)

Diagram for Chemistry question 26 (figure 5)

You can attempt this question now. Sign in to view the answer key, explanations and discussion.Log in to check answer

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.

You can attempt this question now. Sign in to view the answer key, explanations and discussion.Log in to check answer

Consider two non-interacting particles confined to a one-dimensional box with infinite potential barriers. Their wavefunctions are

and

and energies are

and

, respectively. The INCORRECT statement(s) about this system is/are

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

The total energy is

The total wavefunction is

The total energy is

The total wavefunction is

You can attempt this question now. Sign in to view the answer key, explanations and discussion.Log in to check answer

The thermodynamic criterion/criteria for a spontaneous process is/are

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

at constant

and

at constant

and

at constant

and

at constant

and

You can attempt this question now. Sign in to view the answer key, explanations and discussion.Log in to check answer

Xe and F

in 1:1 molar ratio when mixed in a closed flask and kept in the sunlight for a day, gave white crystals of a compound Q. Two equivalents of Q on reaction with one equivalent of AsF

gave an ionic compound X

with the cation having two Xe atoms. The total number of lone pairs present on the cation X

is _____ (in integer).

You can attempt this question now. Sign in to view the answer key, explanations and discussion.Log in to check answer

The total number of hyperfine lines expected in the EPR spectrum of •CH

OH (radical) is ______ (in integer). [Note: Consider all hydrogen atoms for calculation]

You can attempt this question now. Sign in to view the answer key, explanations and discussion.Log in to check answer

Partial hydrolysis of a pentapeptide yields all possible tripeptides and dipeptides. The dipeptides that are obtained upon hydrolysis are given below.

Val-Ala, Gln-His, Phe-Val and Ala-Gln

The total number of tripeptides obtained that contain ‘Ala’ as one of the amino acids is____ (in integer).

You can attempt this question now. Sign in to view the answer key, explanations and discussion.Log in to check answer

The specific rotation of enantiomerically pure (S)-2-butanol is +14°. The specific rotation of enantiomeric mixture of 2-butanol obtained from an asymmetric reduction of 2-butanone is found to be +7°. The percentage of (R)-2-butanol present in the reaction mixture is ______ (in integer).

You can attempt this question now. Sign in to view the answer key, explanations and discussion.Log in to check answer

The ratio of the fundamental vibrational frequencies

of two diatomic molecules

and

, considering their force constants to be the same, is_______ (rounded off to two decimal places).

You can attempt this question now. Sign in to view the answer key, explanations and discussion.Log in to check answer

The expressions for the vapour pressure of solid (

) and vapour pressure of liquid (

) phases of a pure substance, respectively, are

and

The triple point temperature of this substance is ____ K (in integer).

You can attempt this question now. Sign in to view the answer key, explanations and discussion.Log in to check answer

GATE CY exam:gate PYQs

Question 26

Question 27

Question 28

Question 29

Question 30

Question 31

Question 32

Question 33

Question 34

Question 35