Q76.Which of the following reactions will yield 2, 2−dibromopropane? (1) CH3 −C ≡CH + 2HBr ⟶ (2) CH3CH ≡CHBr + HBr ⟶ (3) CH ≡CH + 2HBr ⟶ (4) CH3 −CH = CH2 + HBr ⟶
What This Question Tests
This question tests the understanding of electrophilic addition of HBr to alkynes, specifically applying Markovnikov's rule twice to form a geminal dibromide.
Concepts Tested
📚 NCERT Sections This Tests
7.6 — Give Structures Of The Products You Would Expect When Each Of The
Chemistry Class 12 · Chapter 7
7.6 Give structures of the products you would expect when each of the following alcohol reacts with (a) HCl –ZnCl2 (b) HBr and (c) SOCl2. (i) Butan-1-ol (ii) 2-Methylbutan-2-ol
7.13 — Show How Will You Synthesise:
Chemistry Class 12 · Chapter 7
7.13 Show how will you synthesise: (i) 1-phenylethanol from a suitable alkene. (ii) cyclohexylmethanol using an alkyl halide by an SN2 reaction. (iii) pentan-1-ol using a suitable alkyl halide?
7.10 — Hbr
Chemistry Class 12 · Chapter 7
7.10 HBr C2 H5 OH C2 H5 Br CH3 – CH2 – CH – CH – ONa + C 2H5 Br CH3 – CH2 – CH – CH – OC2 H5 CH3 CH3 CH3 CH3 2-Ethoxy-3-methylpentane 225 Alcohols, Phenols and Ethers Reprint 2025-26
📋 Question Details
- Chapter
- Hydrocarbons
- Topic
- Reactions of Alkynes
- Year
- 2007
- Shift
- Unknown
- Q Number
- Q76
- Type
- MCQ
- NCERT Ref
- Class 11 Chemistry Ch 13: Hydrocarbons
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