Complete GATE CY 2026 Paper 1 overview, original pages and practice · Timed previous-paper practice

Questions 19–21 of 65. Imported answers require review unless explicitly marked reviewed.

Paper practice 65 questionsPage 7 of 22

Question 19

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CYMCQ1 markNeeds review
Among the following, the one for which the infrared active vibrational modes are Raman inactive and vice versa is
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Question 20

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CYMCQ1 markNeeds review
For the following reaction, A + B ⇌ X‡ → product If the value of Δ‡U° = 5/2 RT, then the value of Δ‡H° is (X‡ is an activated complex; Δ‡U° is standard change in internal energy; Δ‡H° is standard enthalpy of activation; R is gas constant; T is temperature)
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Question 21

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CYMSQ1 markNeeds review
The reagent(s) that will effect the following transformation is(are) CH₃CH₂CH₂CH₂OMEM → CH₃CH₂CH₂CH₂OH MEM = methoxyethoxymethyl
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