3 public questions tagged with this topic.
In Kolbe’s reaction, phenol reacts with CO₂ and NaOH under heat and pressure, followed by acidification, to form salicylic acid.
Ref: NCERT Class 12 Chemistry > Chapter 7: Alcohols, Phenols and Ethers > Topic: Chemical Reactions of Phenols and Ethers and Uses
In Kolbe’s reaction, phenol reacts with CO₂ under basic conditions followed by acidification to form salicylic acid (2-hydroxybenzoic acid).
Ref: NCERT Class 12 Chemistry > Chapter 7: Alcohols, Phenols and Ethers > Topic: Chemical Reactions of Phenols and Ethers and Uses
Go with B — Analgesic. Under Phytohormone ALL, this is the standard explanation you’d use in class: it names the real driver or definition, while the rest are nearby but wrong. Not these: A) Growth promoter; C) Ethylene inhibitor; D) Auxin analog. When two options sound similar, choose the one that matches the textbook definition most tightly.
Ref: Best CSIR NET Plant Physiology books: Master Unit 6 with Taiz & Zeiger and Salisbury & Ross. Crack Part C experimental questions with top textbooks.
