B Pharm 3rd Semester | POC-II Unit 1 | Phenols – Properties & Tests | B Pharm Safalta Series
PW B. Pharm
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B Pharm 3rd Semester | POC-II Unit 1 | Phenols – Properties & Tests | B Pharm Safalta Series
5 839 просмотров · Трансляция закончилась 10 месяцев назад
PW B. Pharm
66,7 тыс. подписчиков
5 839 просмотров · Трансляция закончилась 10 месяцев назад
B Pharm 3rd Semester | POC-II Unit 1 | Phenols – Properties & Tests | B Pharm Safalta Series
Lecture by - Pankaj Dagur Sir
Unlock the concept of Phenols – Properties & Tests in this detailed session from B Pharm 3rd Semester | POC-II Unit 1. Learn the chemical nature, reactions, and identification tests of phenols explained in a simple and exam-oriented way.
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📌 Session Timeline:
00:00:00 – Introduction & Recap of Unit 1
00:02:24 – Unit 1 Practice Questions (MCQs)
00:02:24 – MCQ 1: Electron-Donating Groups (EDG)
00:05:50 – MCQ 2: Ortho- & Para-Directing Groups
00:08:12 – MCQ 3: Reagents for Bromination
00:11:43 – MCQ 4: Nitrating Agent (NO₂⁺ / Nitronium Ion)
00:14:32 – Introduction to Phenols (Carbolic Acid)
00:17:03 – Structure of Phenols
00:21:23 – Physical Properties of Phenols
00:24:37 – Classification of Phenols (Mono-, Di-, Trihydric)
00:26:26 – Methods of Preparation of Phenols
00:26:26 – Dow’s Process (from Chlorobenzene)
00:30:50 – From Benzene Sulphonic Acid
00:33:42 – From Benzene Diazonium Salt
00:36:50 – From Cumene (Isopropyl Benzene)
00:40:11 – Acidity of Phenols
00:41:56 – Phenol vs Alcohol Acidity (Resonance & Conjugate Base Stability)
00:52:25 – Effect of Substituents on Acidity (EDG vs EWG)
01:01:11 – Qualitative Tests for Phenols
01:03:44 – Chemical Reactions of Phenols
01:03:44 – Conversion to Benzene (Zn Dust)
01:04:41 – Reimer–Tiemann Reaction
01:06:18 – Kolbe’s Reaction
01:09:11 – Reaction with Bromine Water (2,4,6-Tribromophenol)
01:10:17 – Nitration of Phenol (Dilute vs Conc. HNO₃, Picric Acid)
01:16:25 – Practice Questions (DPQs) & Wrap-up
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