Chemistry Practicals Class 12
Qualitative Analysis of Anions
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- In this salt analysis simulation, you will experience a real-life scenario while doing the experiment.
- You will understand the meaning and examples of anions.
- You will understand various tests to identify the anion present in a given salt.
- It is one of the important class 12 practicals that will help you understand the chemical reactions and learn balancing chemical equations that take place during each test.
- You will acquire the skills required to perform the experiment in a real lab once you understand the different steps in the procedure.
- This chemistry virtual lab provides a very immersive environment and gives you a real-lab-like experience while conducting or performing experiments.
Anions are negatively charged ions. When a neutral atom gains an electron, it forms an anion. In the periodic table, p-block elements or nonmetals have a tendency to accept electrons due to their electronegative nature. Non-metals form anions easily by gaining electrons, and the energy released by the addition of electrons is known as electron affinity. These negatively charged ions can be monoatomic, diatomic, or polyatomic ions, depending on the number of atoms in the anion.
Salts are obtained by complete or partial neutralization of an acid with a base or vice-versa. In the formation of a salt, the part contributed by the acid is called an anion, and the part contributed by the base is called a cation. For example, in the case of Na2SO4 and KCl, Na+ and K+ ions are cations or basic radicals and SO42− and Cl− ions are anions or acidic radicals.
Characteristic tests are carried out to detect the presence of anions in the compound. Tests are of two types positive and negative. While doing a test, one is concerned with the formation or disappearance of (i) colour, (ii) a precipitate, and (iii) a gas. If a test is done and it gives the same results as given in the procedure, it means that the test is a positive one and shows the presence of a certain radical.
Watch this video to learn more about chemistry.
Requirements for this Science Experiment
⦁ Test Tubes ⦁ Test Tube Holder ⦁ Bunsen Burner ⦁ Glass Rod ⦁ Beakers ⦁ Wire Gauze ⦁ Tripod Stand ⦁ Droppers