Basic chemistry

 The Heat is On: Understanding the Significance of Melting Points Melting point  What is Melting point  Melting point is a fundamental physical property of a substance, which is defined as the temperature at which a solid substance transforms into a liquid state at atmospheric pressure. This is a critical property because it can be used to identify a pure substance, to determine its purity, and to understand its behavior under varying conditions of temperature and pressure. Melting point is a characteristic property of a substance, which means that it is unique to that substance and does not depend on the size or shape of the sample. However, the melting point may vary slightly depending on the conditions under which the measurement is taken, such as the rate of heating, the size of the sample, and the purity of the substance. Therefore, the melting point of a substance is usually reported as a range of temperatures rather than a single value. The melting point of a substance depends o

Chemistry 101: A Beginner's Guide to Understanding the World Around Us Chemistry  What is Chemistry ? Chemistry is the study of matter and its properties, composition, and interactions with other substances. It is a fundamental science that encompasses a wide range of topics, from the behavior of atoms and molecules to the reactions that occur in living organisms. Chemistry is the foundation of modern technology and plays a critical role in fields such as medicine, engineering, and materials science. At its core, chemistry is concerned with understanding the structure and behavior of matter at the atomic and molecular level. Chemists study the properties of elements, the structure of molecules, and the forces that govern chemical reactions. They also investigate the behavior of matter under different conditions, such as temperature, pressure, and concentration. One of the key aspects of chemistry is the concept of the chemical bond, which is the force that holds atoms together in m

A Step-by-Step Guide to JEE Main 2023 Session 2 Registration Process JEE Main 2023 Session 2 : Registration Link Active at jeemain.nta.nic.in; How to Apply, Direct Link The National Testing Agency (NTA) has begun the Joint Entrance Examination (JEE) Main 2023 session 2 registration. JEE Mains second attempt registration link is active now on the official website jeemain.nta.nic.in . Aspiring candidates will be able to register for the JEE Main 2023 session 2 exams through the login window. Apply for online registration  Click here   NTA will conduct the JEE Main 2023 session 2 examinations on April 6, 8, 10, 11, and 12. "The dates of advance intimation of examination city, downloading of admit cards, and declaration of result will be displayed on JEE (Main) portal in due course," NTA said in an official notice earlier. The official notice  You can download the official notice you this  Click here   How to fill JEE Main 2023 Application Form Go to the J

Name Reactions in Organic Chemistry: A Key to Understanding Reaction Mechanisms Name reaction of organic chemistry  name reaction, name reactions in organic chemistry class 12, name reactions in organic chemistry, name reaction j chemistry, name reaction of haloalkanes and haloarenes, name reaction of alcohol phenol and ether, name reactions chem academy, name reaction trick, name reaction class 12, name reactions in organic chemistry class 12 physics wallah, name reaction organic chemistry, name reaction class 12 organic chemistry, name reaction aldehyde ketone carboxylic acid, name reaction and rearrangement, name reaction and m echanism, all name reaction All Named reaction in organic chemistry class 12,   All Named reaction in organic chemistry for neet, All Name reaction in organic chemistry for jee, Named reaction in organic chemistry Markownikoff's reaction  All Named reaction in organic chemistry class 12,   All Named reaction in organic chemistry for neet, All Name reacti

HOW TO SOLVE  NUMERICAL PROBLEMS IN CHEMISTRY OR PHYSICS   In this post we will see how to solve numericals problems in chemistry or physics? This video will explain you in detail that how to solve numericals problems in chemistry or physics. This video will teach you about how to solve numericals problems in chemistry  This video also teaches you about how to solve numericals problems in physics  How to solve numericals problems? Step 1 : Learn the formula. Step 2 : Learn the concept of formula. For example  this formula is of 11th std of chemistry  PV=nRT  In this formula Learn about that in this formula  What is P? What is V? What is n? What is R?  What is T  Here  P is the pressure  V is the volume  n is the number of mole  R is the gas constant  T is the temperature  Step 3: Do the easy solved examples given in the textbook or any book which you prefer. If you can not solve the given problem by own then clear your concept again and Learn the formula. If you have solved the problem

 COMPOUNDS OF ALKALI METALS  1. Sodium (Na) , Natrium  Extraction of sodium  : Down's Process  By Electrolysis of fused NaCl + CaCl 2 + NaF  At cathode (Iron Vessel) : Na+ +e– ⟶  Na(s)  At Anode (Graphite) : 2Cl–   →    Cl 2 + 2e–  (i) (CaCl 2 + NaF) is used to lower Melting point (8000 C) of NaCl to about 6000 C.  (ii) Aqueous sodium chloride cannot be used for preparing sodium by electrolysis. Because instead of metallic sodium, hydrogen gas will be liberated at cathode. Properties sodium , Natrium (i) sodium is a crystalline soft metal.  (ii) Highly reactive, so kept in kerosene.  (iii) Na dissolves in liquid NH3 to give blue solution.  Uses of sodium , natrium  (i) In the preparation of sodium amalgam (used as reducing agent)  (ii) In sodium vapour lamp, which emits monochromatic yellow light.  (iii) As heat transfer medium in nuclear reactors. 2. Sodium chloride NaCl Occurrence of sodium chloride (NaCl)  Sea water is the main source and also found in salt lakes. P

 ALKALI METAL  Alkali Metal are   lithium (Li), sodium (Na), potassium (K), rubidium (Rb), cesium (Cs), and francium (Fr) 1.Physical state of alkali metal  One electron in outermost shell & General formula ns¹.   Francium is radioactive element.  All are silvery white.  Light soft, malleable and ductile metals with metallic lustre.   Alkali metals are paramagnetic, diamagnetic and colourless in form of ions. 2.Atomic size of alkali metal  Biggest in their respective period (except noble gas element)  Size increases from Li to Fr due to addition of an extra shell.  Li < Na < K < Rb < Cs < Fr 3. Softness of alkali metal  Alkali metals are soft because of-  (i) Large atomic size  (ii) BCC crystal structure (HCP in Li)  (iii) Loose packing (68% packing efficiency)  (iv) Weak metallic bond  Cs is the softest metal in s-block 4. Melting point and boiling point of alkali metal  Weak interatomic bonds are due to their large atomic radii and presence of only one valence elect