GATE CY 2020 Paper 1 — page 15

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2020 Paper 1

Complete GATE CY 2020 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

In the following reaction sequence, the major products Q and R are:

Your answerChoose one option.

Diagram for Chemistry question 33 (figure 2)

Diagram for Chemistry question 33 (figure 3)

Diagram for Chemistry question 33 (figure 4)

Diagram for Chemistry question 33 (figure 5)

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In the electronic absorption spectrum of an aqueous solution of [Ni(NH₃)₆]²⁺, a very weak band is observed between the bands due to the transitions ³A₂g → ³T₂g and ³A₂g → ³T₁g(F). The transition responsible for the very weak band is (Given: atomic number of Ni is 28)

Your answerChoose one option.

³A₂g → ¹T₁g

³A₂g → ¹T₂g

³A₂g → ¹E_g

³A₂g → ¹A₂g

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The experimental magnetic moment (3.4 BM) of a hydrated salt of Eu³⁺ at 27 °C is significantly different from the calculated value. The difference is due to (Given: atomic number of Eu is 63)

Your answerChoose one option.

population of electrons at higher J level(s) via thermal excitation.

strong ligand field splitting of f-orbitals.

strong spin-orbit coupling.

pairing of electrons in f-orbitals.

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2020 · Paper 1

Question 33

Question 34

Question 35