GATE CY topic:chemical-reactions PYQs & Answers — Page 22

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topic:chemical-reactions

Questions 211–220 of 650. Imported answers require independent review unless marked reviewed.

Topic practice 650 questionsPage 22 of 65

The topicity relationship of Hₐ and Hᵦ in X, Y and Z are, respectively,

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Diastereotopic, Homotopic and Enantiotopic

Homotopic, Enantiotopic and Enantiotopic

Homotopic, Homotopic and Enantiotopic

Diastereotopic, Enantiotopic and Homotopic

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Compound P was prepared based on a four-component reaction at room temperature in methanol. The required starting materials for the synthesis are

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Diagram for Chemistry question 17 (figure 2)

Diagram for Chemistry question 17 (figure 3)

Diagram for Chemistry question 17 (figure 4)

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The major product formed in the following reaction is

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Diagram for Chemistry question 18 (figure 2)

Diagram for Chemistry question 18 (figure 3)

Diagram for Chemistry question 18 (figure 4)

Diagram for Chemistry question 18 (figure 5)

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The reaction of Ph₃PCl₂ with PhNH₂ primarily produces

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Ph₃P=NPh

PhP=NPh

PhCl₂P=NPh

Ph₂ClP=NPh

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Formation of [M(en)₃]²⁺ from [M(H₂O)₆]²⁺ and three equivalents of ethylenediamine (en) is LEAST favored when M is

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Wacker oxidation of alkenes is catalyzed by a combination of

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Pd(II) and Cu(II)

Co(II) and Cu(II)

Pd(II) and Ni(II)

Pd(II) and Co(II)

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For the conversion of [Pt(L)Cl₃]⁻ to trans-[Pt(L)Cl₂(H₂O)], the trans-effect is LEAST when the ligand L is

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H₂O

NH₃

DMSO

C₂H₄

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The tetracoordinated copper center in the oxidized and reduced forms of plastocyanin exhibits longest bond with

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cysteine-S and methionine-S, respectively

methionine-S and cysteine-S, respectively

cysteine-S and cysteine-S, respectively

methionine-S and methionine-S, respectively

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The packing efficiency (in %) of spheres for a body-centered cubic (bcc) lattice is approximately

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The magnitudes of CFSE in [M(H₂O)₆]ⁿ⁺ for Mn and Fe ions satisfy the relations

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Mn²⁺ < Mn³⁺ and Fe²⁺ < Fe³⁺

Mn²⁺ > Mn³⁺ and Fe²⁺ > Fe³⁺

Mn²⁺ < Mn³⁺ and Fe²⁺ > Fe³⁺

Mn²⁺ > Mn³⁺ and Fe²⁺ < Fe³⁺

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GATE CY topic:chemical-reactions PYQs

Question 16

Question 17

Question 18

Question 19

Question 20

Question 21

Question 22

Question 23

Question 24

Question 25