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    • Posted by Jatin Solanki 3 years, 10 months ago

    CBSE > Class 11 > English Elective NCERT
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    • Posted by Jatin Solanki 3 years, 10 months ago

    CBSE > Class 11 > English Core
    • 0 answers
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    • Posted by Khushi Chauhan 3 years, 10 months ago

    CBSE > Class 11 > Physical Education
    • 1 answers

    Vasudha Vasudha 3 years, 10 months ago

    It brings together physical and mental disciplines to achieve a peaceful body and mind; it helps manage stress and anxiety and keeps you relaxing. It also helps in increasing flexibility, muscle strength and body tone. It improves respiration, energy and vitality. ... Yoga asanas build strength, flexibility and confidence.

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    • Posted by Mayank Bhatiya 3 years, 10 months ago

    CBSE > Class 11 > Accountancy
    • 1 answers

    Shri Harrish .B Eshwar 3 years, 10 months ago

    Depression is a mood disorder that causes a persistent feeling of sadness and loss of interest. Also called major depressive disorder or clinical depression, it affects how you feel, think and behave and can lead to a variety of emotional and physical problems.

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    • Posted by Arfan Sm 3 years, 10 months ago

    CBSE > Class 11 > Chemistry
    • 2 answers

    Divya Grewal 3 years, 10 months ago

    Anti markovnikov rule describes that in addition to reactions of alkenes or alkynes,the proton is added to carbon atom that has least number of hydrogen atoms to it.

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    Aditya . 3 years, 10 months ago

    Anti Markovnikov rule describes that in addition to reactions of alkenes or alkynes, the proton is added to the carbon atom that has the least number of hydrogen atoms attached to it.

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    • Posted by Abhay Verma 3 years, 10 months ago

    CBSE > Class 11 > English Elective NCERT
    • 0 answers
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    • Posted by Saumya Mishra -Ganpati Classes 3 years, 10 months ago

    CBSE > Class 11 > Chemistry
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    • Posted by Mns Tyagi 3 years, 10 months ago

    CBSE > Class 11 > Chemistry
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    • Posted by Ridhima Soni 3 years, 10 months ago

    CBSE > Class 11 > हिंदी ऐच्छिक
    • 0 answers
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    • Posted by Michael Roy 3 years, 10 months ago

    CBSE > Class 11 > Biology
    • 1 answers

    Vajra V.R 2 years, 10 months ago

    The nephrons work through a two-step process: the glomerulus filters your blood, and the tubule returns needed substances to your blood and removes wastes. Each nephron has a glomerulus to filter your blood and a tubule that returns needed substances to your blood and pulls out additional wastes.

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    • Posted by Yo Lumi 3 years, 10 months ago

    CBSE > Class 11 > English Elective NCERT
    • 0 answers
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    • Posted by Harsh Vishwakarama 3 years, 10 months ago

    CBSE > Class 11 > Business Studies
    • 0 answers
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    • Posted by Garima Jain 3 years, 10 months ago

    CBSE > Class 11 > History
    • 0 answers
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    • Posted by Navya Saxena 3 years, 10 months ago

    CBSE > Class 11 > Painting
    • 1 answers

    Mubashara Rahman 3 years, 9 months ago

    Jai Ram

    1Thank You

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    • Posted by ... ... 3 years, 10 months ago

    CBSE > Class 11 > English Core
    • 0 answers
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    EQUILIBRIUM 231 SUMMARY When the number of molecules leaving the liquid to vapour equals the number of molecules returning to the liquid from vapour, equilibrium is said to be attained and is dynamic in nature. Equilibrium can be established for both physical and chemical processes and at this stage rate of forward and reverse reactions are equal. Equilibrium constant, Kc is expressed as the concentration of products divided by reactants, each term raised to the stoichiometric coefficient. For reaction, a A + b B c C +d D Kc = [C]c [D]d /[A]a [B]b Equilibrium constant has constant value at a fixed temperature and at this stage all the macroscopic properties such as concentration, pressure, etc. become constant. For a gaseous reaction equilibrium constant is expressed as Kp and is written by replacing concentration terms by partial pressures in Kc expression. The direction of reaction can be predicted by reaction quotient Qc which is equal to Kc at equilibrium. Le Chatelier’s principle states that the change in any factor such as temperature, pressure, concentration, etc. will cause the equilibrium to shift in such a direction so as to reduce or counteract the effect of the change. It can be used to study the effect of various factors such as temperature, concentration, pressure, catalyst and inert gases on the direction of equilibrium and to control the yield of products by controlling these factors. Catalyst does not effect the equilibrium composition of a reaction mixture but increases the rate of chemical reaction by making available a new lower energy pathway for conversion of reactants to products and vice-versa. All substances that conduct electricity in aqueous solutions are called electrolytes. Acids, bases and salts are electrolytes and the conduction of electricity by their aqueous solutions is due to anions and cations produced by the dissociation or ionization of electrolytes in aqueous solution. The strong electrolytes are completely dissociated. In weak electrolytes there is equilibrium between the ions and the unionized electrolyte molecules. According to Arrhenius, acids give hydrogen ions while bases produce hydroxyl ions in their aqueous solutions. Brönsted-Lowry on the other hand, defined an acid as a proton donor and a base as a proton acceptor. When a Brönsted-Lowry acid reacts with a base, it produces its conjugate base and a conjugate acid corresponding to the base with which it reacts. Thus a conjugate pair of acid-base differs only by one proton. Lewis further generalised the definition of an acid as an electron pair acceptor and a base as an electron pair donor. The expressions for ionization (equilibrium) constants of weak acids (Ka ) and weak bases (Kb ) are developed using Arrhenius definition. The degree of ionization and its dependence on concentration and common ion are discussed. The pH scale (pH = -log[H+ ]) for the hydrogen ion concentration (activity) has been introduced and extended to other quantities (pOH = – log[OH– ]) ; pKa = –log[Ka ] ; pKb = –log[Kb ]; and pKw = –log[Kw ] etc.). The ionization of water has been considered and we note that the equation: pH + pOH = pKw is always satisfied. The salts of strong acid and weak base, weak acid and strong base, and weak acid and weak base undergo hydrolysis in aqueous solution.The definition of buffer solutions, and their importance are discussed briefly. The solubility equilibrium of sparingly soluble salts is discussed and the equilibrium constant is introduced as solubility product constant (Ksp ). Its relationship with solubility of the salt is established. The conditions of precipitation of the salt from their solutions or their dissolution in water are worked out. The role of common ion and the solubility of sparingly soluble salts is also discussed. 2020-21

    • Posted by Mukul Kumar 3 years, 10 months ago

    CBSE > Class 11 > Chemistry
    • 1 answers

    Ashutosh Singh 3 years, 10 months ago

    Thoda Chhota likh dete to achha hota

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    • Posted by Poojahanshi Rekhola Rekhola 3 years, 10 months ago

    CBSE > Class 11 > English Elective NCERT
    • 1 answers

    Satyam Raina 3 years, 8 months ago

    KASTURBA HOTEL NEW DELHI 1800001 11MARCH2022 VASANT VIHAR DELHI 180002 SUBJECT. INFORM PARENTS AND ASK FOR MONEY DEAR SIR/ MADAM I AM MOHIT I'M INFORM YOU THAT MY I GOT GOOD PERFORMANCE ANNUAL SCHOOL SPORTS IN MY SCHOOL ON SECOND POSTION YOU HEAR THIS YOU PROUD TO ME YOU FEEL GOOD AND MOM FEEL TO I WANT SOME MONEY FOR pay my pg rent and for my goods YOUR SINCERELY MOHIT

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    • Posted by Mehak Bidhuri 3 years, 10 months ago

    CBSE > Class 11 > History
    • 0 answers
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    • Posted by Byul Hanbyul 3 years, 10 months ago

    CBSE > Class 11 > English Core
    • 0 answers
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    • Posted by Nandita Malhotra 3 years, 10 months ago

    CBSE > Class 11 > English Core
    • 0 answers
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    • Posted by M Nivedha 3 years, 10 months ago

    CBSE > Class 11 > Computer Science
    • 1 answers

    Jagrit Dharewa 3 years, 10 months ago

    T=(2,)

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    • Posted by R. D. Santhosh Topper 3 years, 10 months ago

    CBSE > Class 11 > Entrepreneurship
    • 0 answers
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    • Posted by Ikbal Hassan 3 years, 10 months ago

    CBSE > Class 11 > English Core
    • 2 answers

    Vanshika Aujla 3 years, 9 months ago

    Father and the sun have become complete stranger to each other complete silence found them when they are each other's presence.there is no interaction aur conversation between the father and the sun they don't speak a word to each other.

    1Thank You

    Akshat Gupta 3 years, 10 months ago

    It's like elder brother and younger brother

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    • Posted by Akash Malsa 3 years, 10 months ago

    CBSE > Class 11 > Physics
    • 2 answers

    Shreyas Sreenidhi 3 years, 10 months ago

    Blood flow and heart attack Dynamic lift

    1Thank You

    Ansh Kumar 3 years, 10 months ago

    When a truck moves very fast, it created a low pressure area, so dusts are being pulled along in the low pressure area. If we stand very close to railway track in the platform, when a fast train passes us, we get pulled towards the track because of the low pressure area generated by the sheer speed of the train. Enjoy ?

    4Thank You

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    • Posted by Divya. Kumari 3 years, 10 months ago

    CBSE > Class 11 > Biology
    • 0 answers
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    • Posted by Tannu Yadav 3 years, 8 months ago

    CBSE > Class 11 > Information Technology (802)
    • 0 answers
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    • Posted by Tanish Nagar 3 years, 10 months ago

    CBSE > Class 11 > Painting
    • 0 answers
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    • Posted by Roshni Khan 3 years, 10 months ago

    CBSE > Class 11 > English Core
    • 1 answers

    Roshni Khan 3 years, 10 months ago

    what was the motive of the blacksmith watcher

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    • Posted by Anshu Kumari 3 years, 10 months ago

    CBSE > Class 11 > Physical Education
    • 0 answers
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    • Posted by Aayush Rawat 3 years, 10 months ago

    CBSE > Class 11 > English Core
    • 0 answers
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