Life Sciences
GATE XL Structure-Reactivity Correlations and Organic Reaction Mechanisms PYQs
Build your understanding with focused practice from past exam papers.
Questions 31–40 of 43. Imported answers require independent review unless marked reviewed.
Question 7
Open questionXL-PMCQ2 marksNeeds review
Match the type of reaction in Group-1 with the most appropriate description in Group-2.
Group 1 | Group 2 |
|---|---|
P — Hydroboration-oxidation | 1 — Electrophilic aromatic substitution |
Q — Nucleophilic aromatic substitution | 2 — Oxaphosphetane intermediate |
R — Wittig reaction | 3 — Meisenheimer complex |
S — Friedel-Crafts reaction | 4 — Anti-Markownikoff’s product |
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The reactants P and Q in the following reaction are
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The major product formed in the following reaction is
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Open questionXL-PNAT1 markNeeds review
Two equivalents of P react with one equivalent of Q to produce a major product R.
P =
Q =
The number of double bonds present in the major product R is ______.
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The total number of possible stereoisomers for the compound with the structural formula CH
CH(OH)CH=CHCH
CH
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The major product M in the reaction
is
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The two major products of the reaction
are
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The compound, which upon mono-nitration using a mixture of HNO₃ and H₂SO₄, does NOT give the meta-isomer as the major product, is
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The compound that gives characteristic foul smell upon heating with potassium hydroxide and chloroform is
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The correct order of stability in water is
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