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GyanMul Prep · NEB +2 · Science · Grade 12

Chemistry (Science, Grade 12)

Everything on these tabs is Chemistry (Science, Grade 12) only, within NEB +2 Science · Grade 12.

Science · Grade 12 subjects

GyanMul Prep · NEB +2 · Science · Grade 12

Chemistry (Science, Grade 12)

Everything on these tabs is Chemistry (Science, Grade 12) only, within NEB +2 Science · Grade 12.

Science · Grade 12 subjects

Chapter 11 of 21 · Chemistry (Science, Grade 12)

Phenols

8 topics
Board exam — Organic chemistry, 33 marks across 10 chapters
1 solved question

The same hydroxyl group on a benzene ring, which makes it an acid: preparation by four routes, the acidity resonance explains, and the named reactions that put a carbon group on the ring.

Practise this chapter Read solved questions

Topics

What the syllabus defines for this chapter

1Nomenclature and classification of phenols
2Preparation from benzenesulphonic acid, chlorobenzene, cumene and diazonium salts
3Physical properties
4Acidic character of phenol and the effect of substituents on it
5Electrophilic substitution: nitration, halogenation and sulphonation
6Reimer-Tiemann reaction and Kolbe's reaction
7Coupling with diazonium salts; Libermann's nitroso test
8Uses of phenol