BPSC Prelims and Mains Notes, BPSC Test Series
Rain Water Harvesting Water forms the lifeline of any society. Water is essential for the environment, food security and sustainable development. All the known civilizations have flourished with water source as the base and it is true in the present context too. Availability of drinking water and provision of sanitation facilities are the basic minimum … Read more
Properties of soaps and detergents Soap – Characteristics And Uses Soaps are excellent cleansing agents and have good biodegradability. A serious drawback which reduces their general use, is the tendency for the carboxylate ion to react with Ca+ and Mg+ ions in hard water. The result is a water insoluble salt which can be deposited on … Read more
Solid Waste Management; Types of Solid waste Management; Factors affecting Solid Waste Generation Solid Waste Management Solid waste management is basic public services which every citizen should have access to, both for health and hygiene, and for ensuring a good quality of living. Sanitation here refers to toilet facilities, whereas solid waste management refers to … Read more
Wildlife of India Wildlife means all the flora and fauna, which are not domesticated by humans. It includes animals, birds,plants,insects and microorganisms. With large regional variations in physiographic,climate,and edaphic types, indian forests offer a large variety of wild life in india.India bosts of more than 90,000species of animals which is about 6.5% of the world’s … Read more
Environmental concerns of tourism industry, both positive and negative effects including climate change with reference to Himachal Pradesh Environmental concerns of tourism All too often, the environment is the ultimate victim of development and expansion. Growth pressures have seen Dharamshala’s boundaries encroach on previously untouched land as the local population and tourist demands stretch infrastructure … Read more
Rural-Urban Composition: For the first time since Independence, the absolute increase in population is more in urban areas that in rural areas Rural Population in India: 68.84% Urban Population in India:31.16% Level of urbanization increased from 27.81% in 2001 Census to 31.16% in 2011 Census The proportion of rural population declined from 72.19% to 68.84% … Read more
The thrust of the Scientific Policy Resolution, 1958 was on capacity-building in advancement of science as the foundation for making a strong nation, which had just freed itself from the shackles of colonial domination . The focus of the Technology Policy Statement, 1983 was attainment of technological self-reliance and building of national strength by reducing … Read more
Safe Drinking and Supply Safe drinking water is the birthright of all humankind – as much a birthright as clean air. The majority of the world’s population, however, does not have access to safe drinking water. This is certainly true in most parts of Africa and Asia. Even in relatively advanced countries such as India, … 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
Ore An ore is a special type of rock that contains a large enough amount of a particular mineral (usually a metal) to make it economically practical to extract that mineral from the surrounding rock. Not all minerals are found in a large enough amount in one location to make it worth it to remove the ore … Read more