GATE CY format:mcq PYQs & Answers — Page 29

Questions 281–290 of 394. Imported answers require independent review unless marked reviewed.

Topic practice 394 questionsPage 29 of 40

The major product formed in the following reaction is

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Diagram for Chemistry question 11 (figure 2)

Diagram for Chemistry question 11 (figure 3)

Diagram for Chemistry question 11 (figure 4)

Diagram for Chemistry question 11 (figure 5)

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In the following reaction, the stereochemistry of the major product is predicted by the

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Cram’s model

Cram’s chelation model

Felkin model

Felkin-Anh model

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The product(s) formed in the following reaction is (are)

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I only

II only

III only

mixture of I and II

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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)

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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

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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

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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)

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[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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GATE CY format:mcq PYQs

Question 11

Question 12

Question 13

Question 26

Question 27

Question 28

Question 29

Question 30

Question 31

Question 32