GATE CY kind:question PYQs & Answers — Page 50

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Questions 491–500 of 650. Imported answers require independent review unless marked reviewed.

Topic practice 650 questionsPage 50 of 65

The experimentally observed magnetic moment values, which match well with the spin-only values for the pair of aqueous ions is (Atomic number: Cr = 24, Co = 27, Gd = 64, Tb = 65, Dy = 66 and Lu = 71)

Your answerChoose one option.

Cr(II) and Gd(III)

Co(II) and Gd(III)

Cr(III) and Dy(III)

Lu(II) and Tb(III)

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Among the following compounds, a normal spinel is

Your answerChoose one option.

MgFe₂O₄

ZnFe₂O₄

CoFe₂O₄

CuFe₂O₄

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Following are the examples of silicate minerals Zircon, ZrSiO₄ Beryl, Be₃Al₂Si₆O₁₈ Pyrophyllite, Al₂(OH)₂[Si₄O₁₀] I II III The correct structural description of the minerals is

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I – Ortho silicate, II – Cyclic silicate and III – Sheet silicate

I – Ortho silicate, II – Sheet silicate and III – Cyclic silicate

I – Cyclic silicate, II – Sheet silicate and III – Ortho silicate

I – Sheet silicate, II – Ortho silicate and III – Cyclic silicate

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In the EPR spectrum of a methyl radical, the number of lines and their relative intensities, respectively, are

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1 and 1

3 and 1:2:1

4 and 1:2:2:1

4 and 1:3:3:1

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The product obtained in the reaction of Mn₂(CO)₁₀ with Br₂ is

Your answerChoose one option.

Mn(CO)₅Br

Mn₂(CO)₈Br₂

Mn(CO)₄Br₂

Mn₂(CO)₉Br

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The correct molecular representation of W(Cp)₂(CO)₂ is (Cp = cyclopentadienyl)

Your answerChoose one option.

[W(η¹-Cp)(η³-Cp)(CO)₂]

[W(η¹-Cp)(η⁵-Cp)(CO)₂]

[W(η³-Cp)(η⁵-Cp)(CO)₂]

[W(η⁵-Cp)₂(CO)₂]

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Match the metalloproteins with their respective functions.

P — Ferritin; Q — Rubredoxin; R — Cobalamin; S — Carbonic anhydrase

I — Electron transfer; II — Acid-base catalysis; III — Metal storage; IV — Methyl transfer

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P – III; Q – II; R – I; S – IV

P – III; Q – I; R – IV; S – II

P – IV; Q – I; R – III; S – II

P – IV; Q – II; R – I; S – III

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Suppose the wave function of a one dimensional system is

. In an experiment measuring the momentum of the system, one of the expected outcomes is

Your answerChoose one option.

ℏk

2 ℏk

3 ℏk

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The major product formed in the following reaction is

(Reagents:

-Bu₃SnH; AIBN; benzene,

. AIBN = azobisisobutyronitrile)

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Diagram for Chemistry question 34 (figure 2)

Diagram for Chemistry question 34 (figure 3)

Diagram for Chemistry question 34 (figure 4)

Diagram for Chemistry question 34 (figure 5)

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The major product formed in the following reaction is

(Reagents: 1. B₂H₆; 2. H⁺)

Your answerChoose one option.

Diagram for Chemistry question 35 (figure 2)

Diagram for Chemistry question 35 (figure 3)

Diagram for Chemistry question 35 (figure 4)

Diagram for Chemistry question 35 (figure 5)

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