Hydrogen Bonding,Type,Properties,Applications

One kind of force that is essential to the composition and characteristics of many compounds is hydrogen bonding. It happens when an electronegative atom with a single pair of electrons attracts a hydrogen atom that is covalently bound to a highly electronegative atom, such as nitrogen (N), oxygen (O), or fluorine (F). Type of Hydrogen … Read more

Mole Concept

Introduction:- Mole is a unit which represents 6.022  x  1023  particles  ( atoms, molecules or ions etc) irrespective of their nature. The number 6.022  x  1023  is called Avgadro’s number and is represented by NA .  The calculation of this number is based on the Faraday’s laws of electrolysis. A mole also represents gram molecular … Read more

Rocket Propulsion

Introduction:- Rocket Propulsion:- The propulsion of a rocket is an example of momentum of conservation. In a rocket, gases at high temperature and pressure, are produced by the combustion of fuel. They escape with a large constant velocity through a nozzle. The large backward momentum of the gases imparts an equal forward momentum to the … Read more

MCQs on Cell Structure and Functions for Class 11

1.  Which of the following is the powerhouse of the cell? (a) Nucleus (b) Mitochondria (c) Ribosome (d) Lysosome Answer: (b) Mitochondria Explanation: Mitochondria is  known as the powerhouse of the cell because they generate ATP, through cellular respiration. 2. The organelle responsible for photosynthesis in plants is: (a) Mitochondria (b) Chloroplast (c) Golgi apparatus … Read more

MCQs on Units and Measurements chapter 2 class

1.Which of the following is not a base unit in the International System of Units (SI)? (a) Meter (b) Kilogram (c) Newton (d) Second Answer:  (c) Newton Explanation: Newton is a derived unit for force, but meter, kilogram, and second are base units. 2. The SI unit of electric current is: (a) Ampere (b) Volt … Read more

Structure of Atom MCQs class 11 NEET

1. Who discovered the electron?a) J.J. Thomsonb) Rutherfordc) Bohrd) Dalton Answer: a) J.J. ThomsonExplanation: J.J. Thomson discovered the electron in 1897 through his experiments with cathode rays. 2. Which experiment led to the discovery of the nucleus?a) Cathode ray experimentb) Oil drop experimentc) Gold foil experimentd) Alpha particle scattering experiment Answer: d) Alpha particle scattering … Read more

Mendelian disorders class 12

Introduction:- Mendelian disorders are genetic abnormalities produced by mutations in a single gene. They are named after the father of genetics, Gregor Mendel. These diseases have four distinct inheritance patterns: X-linked dominant, X-linked recessive, autosomal dominant, and autosomal recessive. Mendel’s research on pea plants in the 19th century established the basis for our current understanding … Read more

AIDS Prevention and Causes

Introduction Acquired Immunodeficiency Syndrome (AIDS) remains one of the most pressing worldwide health issues of the twenty-first century. Despite breakthroughs in medicine and public health, AIDS continues to claim lives, affecting millions of people worldwide. Combating the AIDS epidemic requires understanding its causes and developing effective prevention efforts The causes of AIDS, effective AIDS preventive … Read more

Biotechnological Applications in Medicine

Introduction to Biotechnology in Medicine: Biotechnology has transformed medicine by connecting biological processes to create novel treatments and therapies. From genetically engineered medications to improved diagnostic tools, biotechnology applications in medicine have pushed the boundaries of healthcare, increasing patient outcomes and allowing for modified treatment strategies. Key Applications: 1. Genetic Engineering and Gene Therapy: Genetic … Read more

Blood groups and their characteristics

With good reason, blood is sometimes referred to as the “lifeblood” of humanity. This essential fluid flows throughout our bodies, supplying cells with nutrition and oxygen, eliminating waste, and supporting a healthy immune system. Still, the division of blood into various blood groups is one of the most significant features of the blood Knowing blood … Read more