Notes and Study material for Exams
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Laboratory method of preparation acetic acid Ethanoic Acid (Acetic acid – CH COOH) Ethanoic acid is the second member of the homologous series of carboxylic acids. In other words, vinegar contains about 5 to 8% acetic acid. We will now describe two methods for the manufacture of ethanoic acid. In the first method, ethanoic acid … Read more
How to start preparations for Civil Services? Why you should become a civil servant? How to select optional subject? How to read newspapers? When to join coaching? How to teach oneself to self-study so that no coaching is required? What are the books required to be followed? Elaborate strategy for GS. What to do when … Read more
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Method of production manufacture [water, washing soda, baking soda bleaching powder] Washing soda The chemical name of washing soda is sodium carbonate decahydrate, and its chemical formula is Na2CO3.10H2O. So washing soda is hydrated salt of sodium carbonate containing 10 Molecules of water of crystallization. Sodium carbonate is manufactured by Solvay process. The manufacture of … Read more
Production of plaster of paris Plaster is a building material used for the protective or decorative coating of walls and ceilings and for moulding and casting decorative Elements. “plaster” usually means a material used for the interiors of buildings, while “render” commonly refers to external applications. Another imprecise term used for the material is stucco, … Read more
Laboratory method of preparing alcohol Hydrolysis of Alkyl Halides This is a nucleophilic substitution reaction. R-X + KOHaq → R-OH The method is not satisfactory as olefins are also formed as by-products. However better yields is obtained by using moist Ag2O or aqueous K2CO3. Tertiary butyl halides mainly gives alkene due to dehydrohalogenation. Hydration of Alkenes This … Read more