Q33.A chromatography column, packed with silica gel as stationary phase, was used to separate a mixture of compounds consisting of (A) benzanilide (B) aniline and (C) acetophenone. When the column is eluted with a mixture of solvents, hexane:ethyl acetate (20 : 80) , the sequence of obtained compounds is: (1) (B), (C) and (A) (2) (B), (A) and (C) (3) (C), (A) and (B) (4) (A), (B) and (C)
What This Question Tests
This question evaluates the understanding of column chromatography, specifically how the polarity of organic compounds affects their elution order on a polar stationary phase like silica gel.
Concepts Tested
📚 NCERT Sections This Tests
1.23 — Suggest The Most Important Type Of Intermolecular Attractive Interaction In
Chemistry Class 11 · Chapter 1
1.23 Suggest the most important type of intermolecular attractive interaction in the following pairs. (i) n-hexane and n-octane (ii) I2 and CCl4 (iii) NaClO4 and water (iv) methanol and acetone (v) acetonitrile (CH3CN) and acetone (C3H6O). 1.24 Based on solute-solvent interactions, arrange the following in order of increasing solubility in n-octane and explain. Cyclohexane, KCl, CH3OH, CH3CN.
9.8 — Accomplish The Following Conversions:
Chemistry Class 12 · Chapter 9
9.8 Accomplish the following conversions: (i) Nitrobenzene to benzoic acid (ii) Benzene to m-bromophenol (iii) Benzoic acid to aniline (iv) Aniline to 2,4,6-tribromofluorobenzene (v) Benzyl chloride to 2-phenylethanamine (vi) Chlorobenzene to p-chloroaniline (vii) Aniline to p-bromoaniline (viii) Benzamide to toluene (ix) Aniline to benzyl alcohol.
8.17 — Complete Each Synthesis By Giving Missing Starting Material, Reagent Or Products
Chemistry Class 12 · Chapter 8
8.17 Complete each synthesis by giving missing starting material, reagent or products
📋 Question Details
- Chapter
- GOC
- Topic
- Chromatography
- Year
- 2020
- Shift
- 07 Jan Shift 2
- Q Number
- Q33
- Type
- MCQ
- NCERT Ref
- Class 11 Chemistry Ch 12: Organic Chemistry - Some Basic Principles and Techniques
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