IIT JEE Chemistry Study Plan Chapter 16. Purification and Characterisation of Organic Compounds

Text Book Modern's abc of Chemistry CBSE Class XI

Sections in the chapter


16.1 Purification of Organic Compounds
16.2 Qualitative Analysis
16.3 Quantitative Analysis
16.4 Determination of Molecular Mass
16.5 Mass Spectrometer
16.6 Empirical Formula and Molecular Formula
16.7 Modern Methods of Structural Elucidation



Conceptual Questions with Answers: 14
Additional Numerical Problems for Practice: 10
Revision Exercises
Very Short Answer questions 20
Short Answer Questions 27
Long Answer Questions 10

Competition File
Numerical Problems
Objective Questions: 25
Fill in the blanks: 10
True or False: 5

Study Plan

Day 1

16.1 Purification of Organic Compounds

Day 2
Revision of 16.1
Practice Problems 16.1 to 16.11

Day 3

16.2 Qualitative Analysis
PP. 16. 12 to 16.15

Day 4

16.3 Quantitative Analysis

Day 5
16.3 contd.
PP. 16.13 to 16.18

Day 6
16.4 Determination of Molecular Mass

Day 7

16.5 Mass Spectrometer
16.6 Empirical Formula and Molecular Formula
Example 16.13 to 16.20


Day 8
Example 16.21 to 16.25
16.7 Modern Methods of Structural Elucidation
PP. 16.19 to 16.25

Day 9
PP. 16.26 to 16.32
Conceptual Questions with Answers: 14


Day 10
Additional Numerical Problems for Practice: 10
Revision Exercises: Very Short Answer questions 20

Day 11
Revision Exercises: Short Answer Questions 27

Day 12
Competition File: Objective Questions: 25

Day 13
Competition File: Fill in the blanks: 10
Competition File: True or False: 5

Day 14
Revision of concepts

Day 15
Revision of concepts

Principles of qualitative analysis- Study Guide - IIT JEE

Inorganic Chemistry

Groups I to V (only Ag+, Hg2+, Cu2+, Pb2+, Bi3+, Fe3+, Cr3+, Al3+, Ca2+, Ba2+, Zn2+, Mn2+ and Mg2+); Nitrate, halides (excluding fluoride), sulphate, sulphide and sulphite.

Reimer-Tiemann reaction - Phenols

Reimer-Tiemann reaction



When phenol is treated with choloroform and aqueous sodium hydroxide at 340 K followed by hydrolysis, an aldehydic group, -CHO group is introduced in the ring at a position ortho to the phenol group (OH group).

Ortho hydroxy benzaldehyde or salicylaldehyde is formed as the product of the reaction.

In addition, small amount of p-salicylaldehyde is also formed
In place of chloroform, carbon tetrachloride can be used. I this case o-salicylic acid is formed as the major product.

Ch.18.Exercises in Inorganic Chemistry - Core Points for Revision

Syllabus

Principles of qualitative analysis: Groups I to V (only Ag+, Hg2+, Cu2+, Pb2+, Bi3+, Fe3+, Cr3+, Al3+, Ca2+, Ba2+, Zn2+, Mn2+ and Mg2+); Nitrate, halides (excluding fluoride), sulphate, sulphide and sulphite.

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Characteristic tests of Anions

Sulphide: With dilute H2SO4, H2S is evolved, which turns lead acetate paper black.

Sulphite: With dilute H2SO4, SO2 is released.

Sulphate: Soluble sulphate salt gives white precipitate of BaSO4 with BaCl2 solution which is insoluble in concentrated HCl.

Nitrite: With dilute H2SO4, nitric oxide is released.

Chloride: With conc. H2SO4,HCl gas is released.

Bromide: With conc. H2SO4,brownish vapours of Br2 are released.

Iodide: With conc H2SO4,violet vapours of I2 are released.

Nitrate: With conc H2SO4, brown vapours of NO2 are released.

Analysis of Cations

Group I cations: Ag, Hg, Pb

Group II : Hg, Cu, Bi, Cd, As, Sb, Sn

Group III: Fe, Cr, Al,

Group IV: Co, Mn, Ni, Zn

Group V: Ba, Sr, Ca