Notes and Study material for Exams
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
Acid An acid is a substance which forms H+ ions as the only positive ion in aqueous solution. Examples:- Hydrochloric acid dissolved in water forms H+ and Cl– ions HCl —> H+ + Cl– Sulphuric acid dissolved in water forms H+ and SO42- ions H2SO4 —>2H+ + SO42- Nitric acid forms H+ and NO3– ions when dissolved in water HNO3 —> H+ + NO3– … Read more
The nitrogen cycle is a biogeochemical cycle that involves the transformation of nitrogen among various chemical forms. The main reservoir of nitrogen is in the AtmosphereAtmosphere, where it exists as molecular nitrogen (N2). Nitrogen is also found in SoilSoil and water, and in the bodies of plants and animals. Here are the subtopics of the … Read more