7 public questions tagged with this topic.
Aniline (C₆H₅NH₂) undergoes electrophilic substitution with excess bromine water, forming 2,4,6-tribromoaniline due to the strong activating effect of the −NH₂ group.
Ref: NCERT Class 12 Chemistry > Chapter 13: Amines > Topic: Physical Properties, Basic Character and Solubility
Primary alcohols undergo dehydration to give mainly terminal alkenes like but-1-ene.
Ref: NCERT Class 12 Chemistry > Chapter 7: Alcohols, Phenols and Ethers > Topic: Chemical Reactions of Alcohols - Dehydration Oxidation Esterification
Dehydration of butan-2-ol gives a mixture of alkenes, with but-2-ene as the major product according to Saytzeff’s rule.
Ref: NCERT Class 12 Chemistry > Chapter 7: Alcohols, Phenols and Ethers > Topic: Chemical Reactions of Alcohols - Dehydration Oxidation Esterification
Dehydration of pentan-2-ol gives a mixture of alkenes, with pent-2-ene as the major product according to Saytzeff’s rule.
Ref: NCERT Class 12 Chemistry > Chapter 7: Alcohols, Phenols and Ethers > Topic: Chemical Reactions of Alcohols - Dehydration Oxidation Esterification
According to Markovnikov's rule, HBr adds to propene ( CH₃CH=CH₂ ) such that H attaches to the less substituted carbon, yielding CH₃CHBrCH₃ .
Ref: NCERT Class 12 Chemistry > Chapter 6: Haloalkanes and Haloarenes > Topic: Polyhalogen Compounds - Chloroform Iodoform DDT Freons
Pentane ( CH₃CH₂CH₂CH₂CH₃ ) on chlorination favors the secondary position (C₃), forming CH₃CH₂CHClCH₂CH₃ (3-chloropentane).
Ref: NCERT Class 12 Chemistry > Chapter 6: Haloalkanes and Haloarenes > Topic: Polyhalogen Compounds - Chloroform Iodoform DDT Freons
For 2-pentene ( CH₃CH=CHCH₂CH₃ ), HCl adds via Markovnikov's rule, forming CH₃CHClCH₂CH₂CH₃ (2-chloropentane).
Ref: NCERT Class 12 Chemistry > Chapter 6: Haloalkanes and Haloarenes > Topic: Nature of C-X Bond and Methods of Preparation
