Notes and Study material for Exams
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
Dear All we have released an Android App for UPPCS Exams. The main features of App are:- Uttar Pradesh GK General Studies Topic Wise Daily Current Affairs Update , The UPPCS Android App is a comprehensive resource for anyone preparing for the Uttar Pradesh Public Service Commission (UPPCS) exam. The app covers a wide range … Read more
Dear all we are glad to release the Beta version of BPSC Android App. The App has been designed keeping the BPSC Prelims and Mains 2018 in focus and has following features:- Detailed notes for Bihar GK, including Bihar Geography, Bihar History, Bihar economy and Bihar Polity. Exclusive coberage of Each Topic of Prelims and … 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
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
Dear All we have launched our UKPCS Android App. Mains features of the app are:- Uttarakhand GK Daily Current Affairs General Studies , The UKPCS Android App is a comprehensive resource for anyone preparing for the UKPCS exam. The app covers all of the topics that are tested on the exam, including general knowledge, mathematics, … Read more
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
Mains Well the main queries which students ask are:- How to approach State Service Exams? Is it different from the Civil Services Exam? State service exams have a greater focus on state specific general knowledge, material for state specific GK is amply available in hindi and other regional languages. At noteswala we give our … Read more
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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