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    • Posted by Nikhil Mehra 4 years ago

    CBSE > Class 11 > Chemistry
    • 1 answers

    Ankit Kumar 4 years ago

    When pressure is exerted by individual gas is called partial pressure

    2Thank You

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    • Posted by Pratham Kumar 4 years ago

    CBSE > Class 11 > Chemistry
    • 0 answers
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    • Posted by Reena Dwivedi 4 years ago

    CBSE > Class 11 > Chemistry
    • 0 answers
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    • Posted by Nicks Mani 4 years, 1 month ago

    CBSE > Class 11 > Chemistry
    • 0 answers
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    • Posted by Jindal Animation 4 years, 1 month ago

    CBSE > Class 11 > Chemistry
    • 1 answers

    Preeti Sharma 4 years ago

    React phenol with Zn

    4Thank You

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    • Posted by Yash Bhardwaj 4 years, 1 month ago

    CBSE > Class 11 > Chemistry
    • 1 answers

    Raj Maurya 4 years, 1 month ago

    Mgco2

    1Thank You

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    • Posted by Siddharth Jangid 4 years, 1 month ago

    CBSE > Class 11 > Chemistry
    • 0 answers
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    • Posted by Nishi Arya 4 years, 1 month ago

    CBSE > Class 11 > Chemistry
    • 1 answers

    Sneha Baghel 4 years ago

    Tell on insta

    0Thank You

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    • Posted by Nishi Arya 4 years, 1 month ago

    CBSE > Class 11 > Chemistry
    • 0 answers
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    • Posted by Miss Vibha 4 years, 1 month ago

    CBSE > Class 11 > Chemistry
    • 0 answers
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    • Posted by Rakshanda Prem Pushkar 4 years, 1 month ago

    CBSE > Class 11 > Chemistry
    • 0 answers
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    • Posted by Sruti Mishra 4 years, 1 month ago

    CBSE > Class 11 > Chemistry
    • 0 answers
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    • Posted by A.Krishna Prasadh 4 years, 1 month ago

    CBSE > Class 11 > Chemistry
    • 2 answers

    Ayush Tiwari 4 years, 1 month ago

    3

    1Thank You

    Sant Singh 4 years, 1 month ago

    3 isomers

    2Thank You

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    • Posted by Vaibhav Pandey 4 years, 1 month ago

    CBSE > Class 11 > Chemistry
    • 0 answers
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    • Posted by Muskan Johal 4 years, 1 month ago

    CBSE > Class 11 > Chemistry
    • 1 answers

    Ayush Tiwari 4 years, 1 month ago

    Ig ayush_tiwari_at

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    • Posted by Aman Sharma 4 years, 1 month ago

    CBSE > Class 11 > Chemistry
    • 1 answers

    Sanskriti Sharma 4 years ago

    The conversion of propanal to propane is a reduction reaction. This involves the reduction of an aldehyde into a hydrocarbon. There are two methods namely: 1.Clemmesen reduction:The carbonyl group of aldehyde or ketone is converted into CH2 group by treating with Zinc-Amalgam(Zn-Hg) and concentrated hydrochloric acid.   2.Wolf-Kishner reduction:The carbonyl group is converted by the action of hydrazine(NH2-NH2) with KOH or NaOH in high boiling solvent such as ethylene glycol.   Conversion of propanal to propane can be done by any of the following steps. CH3-CH2-CHO→Zn-Hg and conc HCl CH3-CH2-CH3

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    • Posted by Anjali Sharma 4 years, 1 month ago

    CBSE > Class 11 > Chemistry
    • 0 answers
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    • Posted by Rahul Dhariwal 4 years, 1 month ago

    CBSE > Class 11 > Chemistry
    • 0 answers
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    • Posted by Thakur Abhishek Raghuvanshi 4 years, 1 month ago

    CBSE > Class 11 > Chemistry
    • 3 answers

    Amrit Mall 4 years ago

    Lightly substance

    0Thank You

    Krishna Agarwal 4 years, 1 month ago

    It is good in nature

    2Thank You

    Jay Prakash 4 years, 1 month ago

    Covalent nature

    2Thank You

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    • Posted by Thakur Abhishek Raghuvanshi 4 years, 1 month ago

    CBSE > Class 11 > Chemistry
    • 1 answers

    Himanshu Chabarwal 4 years, 1 month ago

    Sodium, potassium

    6Thank You

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    • Posted by Paras Goad 4 years, 1 month ago

    CBSE > Class 11 > Chemistry
    • 0 answers
    ANSWER

    • Posted by Shashank Chaturvedi 4 years, 1 month ago

    CBSE > Class 11 > Chemistry
    • 2 answers

    Krishna Agarwal 4 years, 1 month ago

    It is the same thing to be serious as a result of the day is par phone no nd no is not working in the same thing to do

    0Thank You

    Dulesh Sahu 4 years, 1 month ago

    What is the IUPAC name of C2H5OC2H5

    3Thank You

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    • Posted by Ashish Yadav 4 years, 1 month ago

    CBSE > Class 11 > Chemistry
    • 0 answers
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    • Posted by Hermione Granger 4 years, 1 month ago

    CBSE > Class 11 > Chemistry
    • 0 answers
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    • Posted by Nidhi Netam 4 years, 1 month ago

    CBSE > Class 11 > Chemistry
    • 0 answers
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    • Posted by Arjun Singh Sawner 4 years, 1 month ago

    CBSE > Class 11 > Chemistry
    • 0 answers
    ANSWER

    • Posted by Arfan Sm 4 years, 1 month ago

    CBSE > Class 11 > Chemistry
    • 2 answers

    Divya Grewal 4 years, 1 month 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.

    0Thank You

    Aditya . 4 years, 1 month 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.

    1Thank You

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    • Posted by Saumya Mishra -Ganpati Classes 4 years, 1 month ago

    CBSE > Class 11 > Chemistry
    • 0 answers
    ANSWER

    • Posted by Mns Tyagi 4 years, 1 month ago

    CBSE > Class 11 > Chemistry
    • 0 answers
    ANSWER
    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 4 years, 1 month ago

    CBSE > Class 11 > Chemistry
    • 1 answers

    Ashutosh Singh 4 years, 1 month ago

    Thoda Chhota likh dete to achha hota

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