12th Class Chemistry Chapter 4 Notes

Here we are uploading 12th class Chemistry Chapter 4 notes. These notes are very helpful to prepare papers of F.Sc. 12th class Chemistry chapter 4 notes. You can score good marks by preparing these notes. These notes are for all Punjab boards and Federal board students. These notes provided here are free of cost and you can download these notes in PDF format by clicking the link given at the bottom of this page.

12th Class Chemistry Chapter 4 Notes

This chapter “Group VA and Group VIA Elements” is about the structure and compounds of group VA and VIA elements. The elements of group VA of the periodic table comprises nitrogen, phosphorus, arsenic, antimony and bismuth. The group VIA of the periodic table consists of oxygen, Sulphur, selenium, tellurium and polonium. These elements are called chalcogens from the Greek for “copper giver”, because they are often found in copper ores.

The major concepts of chapter no. 4: Group VA and Group VIA Elements are given below

    4.1 Introduction
         4.1.1 General Characteristics
    4.2 Nitrogen and its Compounds
         4.2.2 Oxides of Nitrogen
         4.2.3 Oxyacids of Nitrogen
    4.3 Phosphorus and its Compounds
         4.3.1 Occurrence
         4.3.2 Allotropes of Phosphorus
         4.3.3 Halides of Phosphorus
         4.4.4 Oxides of Phosphorus
    4.4 Group VIA Elements
         4.4.1 General Characteristics
         4.4.2 Occurrence
         4.4.3 Comparison of Oxygen and Sulphur
    4.5 Sulphuric Acid (H2SO4)
         4.5.1 Manufacture of Sulphuric Acid
         4.5.2 Properties
         4.5.3 Uses of Sulphuric Acid

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