UPSC Prelims 2023 Paper 1 Analysis: Check GS Paper-I exam analysis here The UPSC CSE Prelims Paper-I was successfully conducted by the Union Public Service Commission on May 28, 2023. General Studies (GS Paper 1) took place nationwide from 9:30 AM to 11:30 AM at various examination centers. UPSC Prelims Answer Key 2023 The UPSC …
History of Natural Rubber Natural rubber is an incredibly versatile and widely used material in today’s world. It can be found in a wide range of industrial and consumer products, from tires and hoses to gloves and footwear. However, the story of natural rubber is one that stretches back centuries and across continents, shaped by …
What is an Atom? An atom is the smallest unit of an element that retains the chemical properties of that element. The structure of an atom consists of three main components: Protons, Neutrons, and Electrons. Structure of an Atom Protons are positively charged particles found in the nucleus, or center, of the atom. The number …
Polymerization reactions refer to the chemical processes by which monomers (small, molecular units) join together to form polymers (large, chain-like molecules). These reactions involve the bonding of monomers through covalent bonds, resulting in the formation of longer and more complex macromolecules. Polymerization reactions are crucial for the production of a wide range of materials, including …
What are Solids? Solids are one of the four states of matter and are characterized by having a definite shape and volume. The particles of a solid are tightly packed together and are held in a fixed position by strong intermolecular forces, such as ionic, covalent, or metallic bonds. This means that solids are generally …
Salt, one of the most essential and widely used substances in the world, has a long and fascinating history. Since ancient times, salt has been valued for its ability to preserve food, enhance flavor, and provide health benefits. Its importance was such that it played a significant role in shaping the course of human civilization, …
Vulcanization of rubber is a process used to improve the properties of the rubber by chemically cross-linking the polymer chains. The process was invented by Charles Goodyear in the 19th century, and it revolutionized the rubber industry by making it possible to produce rubber products with improved strength, durability, and elasticity. The process was named …
Difference between Elastic waves and Electromagnetic waves Elastic waves and electromagnetic waves are two different types of waves that propagate through different mediums and exhibit different properties. Here are some key differences between them: Nature of propagation: Elastic waves are mechanical waves that require a medium (solid, liquid, or gas) to travel through. They propagate …
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Change of state of Matter Change of state of matter refers to the physical transformation of a substance from one state (solid, liquid, or gas) to another, typically as a result of changes in temperature or pressure. There are two common types of change of state: Fusion (also known as melting) and Vaporization. Fusion Fusion …
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An electric cell, also known as a battery, is a device that converts chemical energy into electrical energy. It consists of one or more electrochemical cells that produce a voltage or potential difference between their terminals. This potential difference can be used to power electrical devices. An electrochemical cell typically consists of two electrodes, a …
