Complete GATE CY 2024 Paper 1 overview, original pages and practice · Timed previous-paper practice

Questions 43–45 of 65. Imported answers require review unless explicitly marked reviewed.

Paper practice 65 questionsPage 15 of 22

Question 43

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The major products E and F in the following reaction sequence are
Diagram for Chemistry question 43

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Question 44

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CYMCQ2 marksNeeds review

,

,

, and

are four Hückel molecular orbitals of benzene with orbital energies

,

,

, and

, respectively.




The correct order of the orbital energies is
(The six carbon atoms of benzene are denoted by A to F and

is the

orbital of

carbon of benzene.)
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Question 45

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CYMCQ2 marksNeeds review
Consider the following six vibrational modes:
symmetric stretching of CO₂, O-H symmetric stretching of H₂O, stretching of HCl, stretching of H₂, N-H symmetric stretching of NH₃, and bending of CO₂.
Among these modes, if k number of modes are IR active but Raman inactive, l number of modes are IR inactive but Raman active, and m number of modes are both IR and Raman active.
k, l, and m, respectively, are
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