Importance of Core Revision Points: Core Revision Points are important because if you remember them strongly, many more points related to them will come out of your memory and help you to answer question and problems. Read them many times and make sure you remember them very strongly.
Core Revision Points in Sections in Jauhar's Book
12.1 Abundance and Occurrence
12.2 Anomalous Properties of First Element in Each Group
12.3 Diagonal Relationship
Chemistry of Alkali Metals
12.4 Occurrence
12.5 General Characteristics of Alkali Metals
Alkali metals are soft having low melting and boiling points. This is due to weak intermetallic bonding.
12.6 General Characteristics of Compounds of Alkali Metals
12.7 Anomalous Behavior of Lithium
12.8 Diagonal Relationship
Chemistry of Li and Na and Its Compounds
12.9 Occurrence of Lithium and Sodium
Sodium metal is kept under kerosene because it is very reactive and if exposed to air, it reacts with oxygen and carbon dioxide.
12.10 Extraction of Lithium and Sodium
12.11 Some Important Compounds of Sodium
LiCl is covalent in nature due high polarising power of Li+. Being covalent in nature, it is soluble in organic solvent.
LiH is more stable than NaH as LiH has more lattice energy.
Chemistry of Alkaline Earth Metals
12.12 Occurrence
12.13 General Characteristics of Alkaline Earth Metals
12.14 General Characteristics of Compounds of Alkaline Earth Metals
12.15 Differences between Beryllium and Magnesium
12.16 Diagonal Similarities of Beryllium and Aluminium
12.17 Occurrence of Magnesium
Magnesium - Chemistry
12.18 Compounds of Magnesium and Calcium
Compounds of Magnesium
Compounds of Calcium
CaO is quick lime. On adding water to it, calcium hydroxide is formed. This process is called slaking of lime.
Plaster of paris is CaSo4.1/2 H2O. On mixing with water, it forms a plastic mass which sets inot hard solid mass (gypsum). This change is called setting of plaster of paris.
12.19 Industrial Uses of Limestone and Lime
12.20 Cement
Cement is called portland cement because it resembles with the famous building stone found near Portland in England.
Cement was first introduced in England in 1824 by Joseph Aspidin.
Chemically, cement is a finely ground mixture of calcium silicates and aluminates which set to a hard mass when treated with water.
Practice problems
http://makoxmcqs.com/chemistry-mcqs-for-iit-jee-s-block-elements-mcq-practice-sheet/
Sections in Jauhar's Book
12.1 Abundance and Occurrence
12.2 Anomalous Properties of First Element in Each Group
12.3 Diagonal Relationship
Chemistry of Alkali Metals
12.4 Occurrence
12.5 General Characteristics of Alkali Metals
12.6 General Characteristics of Compounds of Alkali Metals
12.7 Anomalous Behavior of Lithium
12.8 Diagonal Relationship
Chemistry of Li and Na and Its Compounds
12.9 Occurrence of Lithium and Sodium
12.10 Extraction of Lithium and Sodium
12.11 Some Important Compounds of Sodium
Chemistry of Alkaline Earth Metals
12.12 Occurrence
12.13 General Characteristics of Alkaline Earth Metals
12.14 General Characteristics of Compounds of Alkaline Earth Metals
12.15 Differences between Beryllium and Magnesium
12.16 Diagonal Similarities of Beryllium and Aluminium
12.17 Occurrence of Magnesium
12.18 Compounds of Magnesium and Calcium
Compounds of Magnesium
Compounds of Calcium
12.19 Industrial Uses of Limestone and Lime
12.20 Cement
Updated on 2 January 2020
21 May 2019
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