Notes and Study material for Exams
[su_posts template=”templates/list-loop.php” posts_per_page=”20″ post_type=”post,page” tax_term=”1337″ tax_operator=”0″ order=”desc” orderby=”modified”], The Environment is the natural world that surrounds us. It includes the air we breathe, the water we drink, the food we eat, and the land we live on. The environment is essential for our survival, and it is important to protect it. There are many environmental … Read more
Preparation and properties of commonly used dyes Dye, substance used to impart colour to textiles, paper, leather, and other materials such that the colouring is not readily altered by washing, heat, Light, or other factors to which the material is likely to be exposed. Dyes differ from pigments, which are finely ground solids dispersed in … 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 major causes of the Environmental Degradation are modern Urbanization, industrialization, over-Population Growth, deforestation etc. Environmental pollution refers to the degradation of quality and quantity of natural Resources. Mahatma Gandhi’s principle of “enoughness” in his saying “the earth provides enough to satisfy every persons need but not for every person’s greed” According to World Commission … Read more
Preparation and properties of commonly used dyes Dye, substance used to impart colour to textiles, paper, leather, and other materials such that the colouring is not readily altered by washing, heat, Light, or other factors to which the material is likely to be exposed. Dyes differ from pigments, which are finely ground solids dispersed in … Read more
Digestive System Introduction The respiratory and circulatory systems work together to provide cells with the Oxygen they need for cellular Respiration. Cells also need glucose for cellular respiration. Glucose is a simple sugar that comes from the food we eat. To get glucose from food, digestion must occur. This process is carried out … 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 … Read more
The pH of natural rain is found to be in the range from 5 to 7. The term Acid Rain is customarily applied to Precipitation with a pH below 5. Such low pH values are generally possible only in the presence of large amounts of anthropogenic pollution. Sulphuric acid and nitric acid is considered as … Read more
Quick Revision Topic: pH scale and its day to day application Definition: pH scale is the scale developed to measure the concentration of Hydrogen ion in a solution. Here ‘p’ in pH implies ‘potenz’ in german. The pH of a neutral solution is 7. for Acidic solution pH is less than 7 and … Read more
ECOLOGY Ecology is defined “as a scientific study of the relationship of the living organisms with each other and with their Environment.” The classical texts of the Vedic period such as the Vedas, the Samhitas, the Brahmanas and the Aranyakas–Upanishads contain many references to ecological concepts .The Indian treatise on medicine, the Caraka- Samhita … Read more