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✅Class 11 Chemistry Study Material ✔️ NCERT Notes -  https://drive.google.com/drive/u/0/folders/1MJI_-Dv3OnBeqmKbxxSW_o1odtZifTR- ✔️JEE pyq's-  https://drive.google.com/drive/u/1/folders/12EuY6ujivPbPEbOS0bCkbrJ9LCZIVQFW ✔️JEE/NEET notes-  https://drive.google.com/drive/u/0/folders/1gh87EBeP8hG2SFxCqM28incyKRKAw0yc ✔️Concept maps-  https://drive.google.com/drive/u/0/folders/1NiqcoQ8cad60yqiB1kYTvw81jwmR6LiE  Join Official Channel to get more Notes  YouTube Channel https://youtube.com/channel/UCT9fNhRTCrhxhBlDBGNdH-A Telegram Group https://t.me/jee_neet_aimmslbsana_upsc Telegram Channels https://t.me/knowledgefactory_55

🛑Structure of the Atom🛑 ➖By 1900, it was discovered that the atom was not a simple, indivisible particle, but rather it contains sub-atomic particles. ➖J.J. Thomson discovered the sub-atomic particle namely ‘electron.’ ➖J.J. Thomson was the first person who proposed a model for the structure of an atom. ➖In 1886, E. Goldstein discovered the presence of new radiations in a gas discharge and named them canal rays. ➖Another positively charged sub-atomic particle was discovered with experiments of canal rays and named it proton. 🧿Thomson’s Model of Atom ➖Thomson proposed that an atom consists of a positively charged sphere and the electrons (negative charge) are embedded in it (as shown in the image given below). ➖Further, Thomson said that the negative and positive charges are equal in magnitude. Thus, the atom as a whole is electrically neutral. 🧿Rutherford’s Model of Atom ➖E. Rutherford is popular as the ‘Father’ of nuclear physics. ➖Rutherford is largely known for his work on radio...

🧯Chemical Effects of Electric Current ✍️Introduction ➖Most of the liquids that conduct electricity belong to solutions of acids, bases and salts. ➖Some liquids are good conductors and some are poor conductors of electricity. ➖The passage of an electric current through a conducting liquid normally causes chemical reactions and the resulting effects of this reaction are known as chemical effects of currents. ➖The process of depositing a layer of any desired metal on another material by means of electricity is known as electroplating. ➖Electroplating is commonly used in industry for coating metal objects with a thin layer of a different metal. ➖Coating of zinc is applied on iron to protect it from the corrosion and formation of rust. 🧯Magnetic Effects of Electric Current ✍️Introduction ➖The electricity and magnetism are linked to each other and it is proved when the electric current passes through the copper wire, it produces a magnetic effect. ➖The electromagnetic effects first time no...

♦️Revision Notes on Flow of Liquids and Viscosity♦️(2/3) ➖➖➖➖➖➖➖➖➖➖➖➖➖➖➖➖ Viscosity:- Viscosity is the property of fluids by virtue of which they tend to destroy any relative motion between their layers. Velocity gradient:- Velocity gradient is defined as the rate of change of velocity with respect to distance. (a) Velocity gradient = dv/dr (b) Dimension of velocity gradient = [dv/dr] = [T-1] (c) Direction of velocity gradient is perpendicular to the direction of flow, directed in the direction of increasing velocity. (d) Average velocity gradient:- Average velocity gradient is the difference between velocities of two layers separated a unit distance apart. Average velocity gradient = Δv/Δr Newton’s law of viscosity:- In accordance to Newton’s law of viscosity, the viscous drag force depends upon the nature of fluid along with following factors:- (a) F∝A (common area of two layers) (b) F∝dv/dr (velocity gradient) (c) So, F =ηA (dv/dr) Here η is called coefficient of viscosity of flu...

📚Notes on Trigonometric Equations and Identities📚 A function f(x) is said to be periodic if there exists some T > 0 such that f(x+T) = f(x) for all x in the domain of f(x). In case, the T in the definition of period of f(x) is the smallest positive real number then this ‘T’ is called the period of f(x). Periods of various trigonometric functions are listed below: 1) sin x has period 2π 2) cos x has period 2π 3) tan x has period π 4) sin(ax+b), cos (ax+b), sec(ax+b), cosec (ax+b) all are of period 2π/a 5) tan (ax+b) and cot (ax+b) have π/a as their period 6) |sin (ax+b)|, |cos (ax+b)|, |sec(ax+b)|, |cosec (ax+b)| all are of period π/a 7) |tan (ax+b)| and |cot (ax+b)| have π/2a as their period ➖Sum and Difference Formulae of Trigonometric Ratios 1) sin(a + ß) = sin(a)cos(ß) + cos(a)sin(ß) 2) sin(a – ß) = sin(a)cos(ß) – cos(a)sin(ß) 3) cos(a + ß) = cos(a)cos(ß) – sin(a)sin(ß) 4) cos(a – ß) = cos(a)cos(ß) + sin(a)sin(ß) 5) tan(a + ß) = [tan(a) + tan (ß)]/ [1 - tan(a)tan (ß)] 6)tan(a -...

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The Journey of a Saint “Life is not worth living unless it is lived for others.”- Mother Teresa. A name that resonates with charity and humility, she taught us the true meaning of selfless living.  A life so dedicated to the cause of providing for others, that it has come to be identified with the stories of the million lives she touched with her healing hand. Decorated with the highest of awards and recognitions worldwide, our humble lady had but one thing to say, “I personally am most unworthy, and I having avowed poverty to be able to understand the poor, I choose the poverty of our people. But I am grateful and I am very happy to receive it in the name of the hungry, of the naked, of the homeless, of the crippled, of the blind, of the leprous, of all those people who feel unwanted, unloved, uncared, thrown away of the society, people who have become a burden to the society, and are ashamed by everybody.” (10 December, 1979, Nobel Prize Speech) While her deeds of sel...

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For more Study Material  Join 🔜  https://t.me/knowledgefactory_55 11th Class All Book PDF Download Biology  https://drive.google.com/file/d/1HabfYNKdLijL7UBy7IfowXeJgFSfrMZG/view?usp=drivesdk Physics  https://drive.google.com/file/d/1xIPg_P-d34HfKopxvIZpakPmY27t3oDl/view Chemistry https://drive.google.com/file/d/1e3lZafbWlX2ExhknApxe-rcia2b1GM7w/view Information Technology https://drive.google.com/file/d/10nM37xNgpyHOgO2knvm6yYB-zUHNrDDc/view English https://drive.google.com/file/d/1OxGjnWsbnOnYJj8JVoKJ8Tcd0CxJ2gLc/view Mathematics and Statics -1 (For Commerce Students) https://drive.google.com/file/d/19Yx1lmmsXee-IfZWf7bVjCgXhqNLEGh6/view Mathematics and Statistics-II (For Commerce Students) https://drive.google.com/file/d/1TVG6z8v0LC_zCjifMTHSXJFW6tRXBJRe/view Mathematics and Statistics-I (For Arts and Science Students) https://drive.google.com/file/d/1q_KVYffIlB0lHtWLr_C3FXfQKYFxrVQu/view Mathematics and Statistics-II (For Arts and Science Students) https://drive...

🥲🩺 𝙁𝙖𝙘𝙩𝙨 𝙖𝙗𝙤𝙪𝙩 𝘽𝙡𝙤𝙤𝙙 🩸💉 🩸1. More than 4.5 𝙢𝙞𝙡𝙡𝙞𝙤𝙣 𝙥𝙖𝙩𝙞𝙚𝙣𝙩𝙨 need blood transfusions eoach year in the U.S. and Canada. 🩸2. 43,000 pints: amount of donated blood used each day in the 𝙐.𝙎 and 𝘾𝙖𝙣𝙖𝙙𝙖. 🩸3. Someone needs blood every two seconds. 🩸4. Only 37 percent of the U.S. population is eligible to donate blood – less than 10 percent do annually**. 🩸5. About 1 in 7 people entering a 𝙝𝙤𝙨𝙥𝙞𝙩𝙖𝙡 need blood. 🩸6. One pint of blood can save up to 𝙩𝙝𝙧𝙚𝙚 lives. 🩸7. 𝙃𝙚𝙖𝙡𝙩𝙝𝙮 𝙖𝙙𝙪𝙡𝙩𝙨 who are at least 17 years old, and at least 110 pounds may donate about a pint of blood—the most common form of donation—every 56 days, or every two months. 𝙁𝙚𝙢𝙖𝙡𝙚𝙨 receive 53 percent of blood transfusions; males receive 47 percent. 🩸8. 94 percent of blood donors are registered voters. 🩸9. Four main 𝙧𝙚𝙙 𝙗𝙡𝙤𝙤𝙙 𝙘𝙚𝙡𝙡 𝙩𝙮𝙥𝙚𝙨: A, B, AB and O.  Each can be 𝙥𝙤𝙨𝙞𝙩𝙞𝙫𝙚 or 𝙣𝙚𝙜𝙖𝙩𝙞𝙫𝙚 for the Rh factor. ...

Knowledge factory. HC varma book.  For 11th and 12th jee and neet.  Very simple and easy to solve.  Download from below link.  Volume 1 of HC varma book.  👇👇👇👇👇👇☝ https://drive.google.com/file/d/18xHbK0OrTskj2Ne62C9O57b4Un6W8jki/view?usp=drivesdk Volume 2 of Hc varma book.  👇👇👇👇👇👇👇👇👇👇 https://drive.google.com/file/d/18vRYzpCUtCL6oh9sIG0r3gya3XJ3OOx9/view?usp=drivesdk Article by knowledge factory.  Subscribe for more updates.  https://youtube.com/channel/UCT9fNhRTCrhxhBlDBGNdH-A Telegram :  https://t.me/knowledge_factory123

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