The adsorbent used in adsorption chromatography is/are
A. silica gel
B. alumina
C. quick lime
D. magnesia
Choose the most appropriate answer from the options given below:

Question

Canvas Classes · Accepted Answer

Step 1: Requirements for a Good Adsorbent

An adsorbent for chromatography must be:
1. Chemically inert (must not react with compounds being separated)
2. Porous with large surface area (for maximum adsorption)
3. Available in appropriate polarity

Step 2: Evaluate Each Option

A. Silica gel () ✅
- Polar adsorbent with surface silanol () groups
- Surface area: 200–600 m²/g
- Standard adsorbent in column chromatography and TLC
- Adsorption order: carboxylic acids  alcohols  ketones  esters  hydro

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