Class 11

Introduction  When a woman becomes pregnant, the baby inside her womb goes through several stages of development. They convert from a fertilised egg to blastocyst and then a foetus, ready to take birth after nine months.  Embryo development is a crucial topic of Biology, NEET UG syllabus. If you’ve studied Biology in your 10th and

So much of India’s population lives in villages, the country’s economy remains primarily agricultural. We have always been aware of the earth’s abundance as a culture. Farmer-friendly technology has made its way into the agricultural arena because of the invention of modern-day machinery. Have you seen the women of the family sit out on the

  INTRODUCTION Reproduction is the process of making a new person or having an offspring that is the same as the parents. This process makes sure that the number of people in a species grows when the environment is good. It is one of the most important things that living things do and one of

Extraction refers to a division process containing the division of a component from a medium. A few examples of the same are liquid extraction and solid-phase extraction. The form of extraction in which contaminants are removed from the medium consisting of a certain compound is called washing. Extraction is used in everyday activities, which are

Purification Techniques The purification techniques of organic compounds is a necessary process after their extraction from their natural source or synthesis in the laboratory. Methods of purification of organic compounds mainly depend on the basic nature of the compound and also on the impurities in it. The purity of an organic compound is detected by

The most important procedures are the preparation of aspirin, the recrystallization of aspirin, and the determination of the melting point of aspirin. To make aspirin, acetic anhydride is added to a measured amount of salicylic acid, which is then dried. To bring the reaction to a close, sulphuric acid is introduced and briefly heated. What