Chemistry of Representative Elements
Important Easy Notes of Chapter No.1: Chemistry of Representative Elements written by Professor Mr. Moeez Khan Suib. These notes are very helpful in the preparation of Chemistry for students of the 12th class and these are according to the paper patterns of all Sindh Book Boards.
Summary and Contents:
Topics which are discussed in the notes are given below:
- S block elements and p block elements.
- General Group Trends of Representative elements.
- Cs atom is bigger than Li atom.
- Na atom is bigger than Mg atom.
- Definition of ionization energy with examples.
- The ionization energy of Na is more than K.
- The ionization energy of nitrogen is more than oxygen.
- Definition of electronegativity.
- Electronegativity of Na is more than K.
- Definition of Electrical Conductivity.
- Definition of Oxidation State.
- Definition of Melting and Boiling point.
- Reactions of a Representative elements S block elements
- Reaction with oxygen, reaction with water, reaction with the halogens, reaction with the nitrogen, reaction with hydrogen, reaction with alcohols, reaction with acids.
- Definition of Flame test for S block elements.
- Solved Multiple Choice Questions (MCQ's) of the Chapter No.1: Chemistry of Representative Elements Sindh Book Boards.
- Bleaching powder and physical properties of bleaching powder.
- Chemical properties of bleaching powder: (i) Reaction with water (ii) Reaction with acids.
- Uses of bleaching powder.
- Reactions of p block elements: Reaction with oxygen, Reaction with the halogens, Reaction with the nitrogen, Reaction with hydrogen.
- Bond enthalpies in halogens and acidity of hydrogen halides.
- Strength of halogens as oxidizing agent and halides ions as a reducing agent.
- Chlorine as an auto oxidizing and reducing agent.
- Oxidation of Sulphur to Sulphur dioxide
- Purification of Sulphur dioxide gas
- Diagonal relationship of Representative elements.