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    • Posted by Damodar Anmol 7 years, 1 month ago

    CBSE > Class 11 > Chemistry
    • 1 answers

    Aashir Arham ⚽?⚽ 7 years, 1 month ago

    The heat energy released when new bonds are made between the ions and water molecules is known as the hydration enthalpy of the ion.

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    • Posted by Damodar Anmol 7 years, 1 month ago

    CBSE > Class 11 > Chemistry
    • 1 answers

    Aashir Arham ⚽?⚽ 7 years, 1 month ago

    An oxyacid, or oxoacid, is an acid that contains oxygen. Specifically, it is a compound that contains hydrogen, oxygen, and at least one other element, with at least one hydrogen.

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    • Posted by Priyanshu Kumar 7 years, 1 month ago

    CBSE > Class 11 > Chemistry
    • 2 answers

    Aashir Arham ⚽?⚽ 7 years, 1 month ago

    The partial pressure of the water vapour present in the moist gas. When the gas is colleced over the water, it becomes moist due to presence of small quantity of water vapour caused by evaporation.

    2Thank You

    Damodar Anmol 7 years, 1 month ago

    Tension by aqueous

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    • Posted by Priyanshu Kanaujiya 7 years, 1 month ago

    CBSE > Class 11 > Chemistry
    • 1 answers

    Ankit Sangwan 7 years, 1 month ago

    Butane + NaBr

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    • Posted by G Mankoo 7 years, 1 month ago

    CBSE > Class 11 > Chemistry
    • 1 answers

    Yogita Ingle 7 years, 1 month ago

    In gaseous phase, water molecule(H2O) has a bent form with a bond angle of 104.5°. The O–H bond length is 95.7 pm. The structure of H2O can be shown as: 

    Hydrogen peroxide has a non-planar structure both in gas and solid phase. The dihedral angle in gas and solid phase is 111.5° and 90.2° respectively. The structure of H2O2 can be shown as:

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    • Posted by Himani Pandey 7 years, 1 month ago

    CBSE > Class 11 > Chemistry
    • 2 answers

    Navdeep Singh 7 years, 1 month ago

    Watch youtube videos on chemistry expt.I scored gud mark by doing that and making notes what i learned

    1Thank You

    Damodar Anmol 7 years, 1 month ago

    Practice and revise

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    • Posted by Sakib Malik 7 years, 1 month ago

    CBSE > Class 11 > Chemistry
    • 0 answers
    ANSWER

    • Posted by Talib Gazi 7 years, 1 month ago

    CBSE > Class 11 > Chemistry
    • 0 answers
    ANSWER

    • Posted by Meghna Sharma 7 years, 1 month ago

    CBSE > Class 11 > Chemistry
    • 2 answers

    Aashir Arham ⚽?⚽ 7 years, 1 month ago

    Happy

    1Thank You

    Aashir Arham ⚽?⚽ 7 years, 1 month ago

    It is a medicine so it contain some ingredients that are bitter in taste.....as we know that medicines are bitter in taste

    1Thank You

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    • Posted by Priyanka Priyanka 7 years, 1 month ago

    CBSE > Class 11 > Chemistry
    • 2 answers

    Aashir Arham ⚽?⚽ 7 years, 1 month ago

    Sorry mathematical relation nahi mila.....

    1Thank You

    Aashir Arham ⚽?⚽ 7 years, 1 month ago

    Heat has randomising influence on a system and temperature is the measure of average chaotic motion of particles in the system.

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    • Posted by K S 7 years, 1 month ago

    CBSE > Class 11 > Chemistry
    • 3 answers

    Abhishek Mishradelhi Holy Convent School 7 years, 1 month ago

    helium gas is preferred in balloons not dihydrogen gas

    0Thank You

    Avantika Tayal 7 years, 1 month ago

    It is lighter than air

    2Thank You

    Avantika Tayal 7 years, 1 month ago

    Because it ia loghter than air so it will help the baloon to fly easily

    2Thank You

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    • Posted by Anisha Sharma 7 years, 1 month ago

    CBSE > Class 11 > Chemistry
    • 3 answers

    Shatayu Ganvir 7 years, 1 month ago

    Co2 because critical temperature is the temperature above which the gas cant liquify. Now co2 can be liquid until 31.1 celsius but at 31.1 ch4 will be gas. Hence c02 has more intermolecular force.

    0Thank You

    Anisha Sharma 7 years, 1 month ago

    Nobody is here who can solve this question??

    0Thank You

    Anisha Sharma 7 years, 1 month ago

    Plzz answer.... If someone knows the solution..

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    • Posted by Pranshu Kaushik 7 years, 1 month ago

    CBSE > Class 11 > Chemistry
    • 1 answers

    Abhishek Mishradelhi Holy Convent School 7 years, 1 month ago

    Ideal gas is a gas which is non viscous at stp 1 mole = 22.7 litres. Derivation is not imp for school exam but if u want to see u can check page 141 ncert

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    • Posted by Aryan Yadav 7 years, 1 month ago

    CBSE > Class 11 > Chemistry
    • 4 answers

    Prashant Singh 7 years, 1 month ago

    due to fully filled orbitals noble gas are already stable and according to definition amount of energy released when elcectron is added to valence shell is called electron gain enthalpy .noble gases are neither losses nor gain electrons due to stability.

    0Thank You

    Abhishek Mishradelhi Holy Convent School 7 years, 1 month ago

    Anisha Sharma u r wrong

    0Thank You

    Anisha Sharma 7 years, 1 month ago

    Aryan..... From where you found this question.... Because I have searched this question but not found any answer...... I think your question is wrong.... Plz let me know whether I'm right or not..... Plz tell if your question is absolutely correct..... ?

    0Thank You

    Anisha Sharma 7 years, 1 month ago

    Noble gas has large positive electron gain enthalpy. This is because the one electron is placed in the principal quantum energy levels .thus highly unstable electronic configuration is formed..

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    • Posted by Ronak Raj 7 years, 1 month ago

    CBSE > Class 11 > Chemistry
    • 1 answers

    Yogita Ingle 7 years, 1 month ago

    The distinguish test between ethene and ethyne could be performed with Bromine. Ethene would react with Bromine and convert reddish brown bromine into colorless whereas Ethyne would not react with bromine .

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    • Posted by Abhishek Kala 7 years, 1 month ago

    CBSE > Class 11 > Chemistry
    • 1 answers

    Tripti Shah 7 years, 1 month ago

    Laplace corrected the law of speed of sound in air or gasses which was first given by Netwon .and after the laplace correction the speed of sound in air is 332 .3m per second. And he only putted gama in the formula , P/d = gama p/ d

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    • Posted by Nirvail Singh 7 years, 1 month ago

    CBSE > Class 11 > Chemistry
    • 0 answers
    ANSWER

    • Posted by Srishti Shukla 7 years, 1 month ago

    CBSE > Class 11 > Chemistry
    • 2 answers

    Aashir Arham ⚽?⚽ 7 years, 1 month ago

    It is more harmful than smoke

    0Thank You

    Aashir Arham ⚽?⚽ 7 years, 1 month ago

    It is formed by combination of smoke and fog and hence called smog

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    • Posted by Neha 7 years, 1 month ago

    CBSE > Class 11 > Chemistry
    • 1 answers

    Talib Gazi 7 years, 1 month ago

    Borax silicate is most imp

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    • Posted by Vikas Sharma 7 years, 1 month ago

    CBSE > Class 11 > Chemistry
    • 0 answers
    ANSWER

    • Posted by Arvind Soni 7 years, 1 month ago

    CBSE > Class 11 > Chemistry
    • 2 answers

    Anisha Sharma 7 years, 1 month ago

    The critical temperature is the temperature above which a gas cannot be liquefied ever after applying a large amount of pressure.

    0Thank You

    Abhishek Kala 7 years, 1 month ago

    It may be defined as the temperature above which no gas can be liquified.

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    • Posted by Anisha Sharma 7 years, 1 month ago

    CBSE > Class 11 > Chemistry
    • 5 answers

    Aashir Arham ⚽?⚽ 7 years, 1 month ago

    Inert pair effect Problem 11.5 in textbook Ortho boric acid Problem 11.4 in tb Structure of diborane Problem 11.7 of tb Exercise que.2,5,6,10,19,21-30.......that's it

    0Thank You

    Abhishek Mishradelhi Holy Convent School 7 years, 1 month ago

    Anisha Dharma imp for school exams 1 inert pair effect 2explain why atomic radius of ga is smaller than all 3 silicates cement 4 what is diagonal relationship

    0Thank You

    Talib Gazi 7 years, 1 month ago

    Boron borex silicon silicate

    0Thank You

    Neha 7 years, 1 month ago

    Silica,silicates,silicones ho sakte h

    0Thank You

    Anisha Sharma 7 years, 1 month ago

    Please answer anybody????............

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    • Posted by Abhishek Kala 7 years, 1 month ago

    CBSE > Class 11 > Chemistry
    • 2 answers

    Abhishek Kala 7 years, 1 month ago

    And what will be the short definition for it?

    0Thank You

    Yogita Ingle 7 years, 1 month ago

    VSEPR theory can be explained as follows:

    1. The shape of any molecule can be explained by the repulsion between all the electron pairs that are present in the valence shell.
    2. The repulsion between two lone pairs is greater than the repulsion between a lone pair and a bond pair. Presence of a lone pair on the central atom causes slight distortion of the bond angles from their ideal values.
    3. The electronegativity difference between the central atom and the other atoms determines the magnitude of repulsion between the bonding pair of electrons.
    4. Triple bonds cause more repulsion than the double bonds. Similarly double bond causes more repulsion than a single bond.

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    • Posted by Rishita Pal 7 years, 1 month ago

    CBSE > Class 11 > Chemistry
    • 1 answers

    Shivshant Prasad 7 years, 1 month ago

    u can see in this app only open that subjects which u have opptied and go to the cbse syllabus pattern there u will get divison of marks of each subjects clearly and its also correct

    1Thank You

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    • Posted by Adarsh Pandey 7 years, 1 month ago

    CBSE > Class 11 > Chemistry
    • 0 answers
    ANSWER

    • Posted by Adarsh Pandey 7 years, 1 month ago

    CBSE > Class 11 > Chemistry
    • 1 answers

    Yogita Ingle 7 years, 1 month ago

    (1) The supression  degree of dissociation of weak electrolyte upon the addition of strong electrolyte having common ions between them is known as common ion effect.
    (2) A substance's solubility product, Ksp, is the mathematical product of its dissolved ion concentrations  with each concentration raised to the power of their stoichiometric coefficients. 
    For example the solubility product of ionic compound Ag2S is
    Ksp =[Ag+]2[S-2]
    (3) A solution which resists any change in its pH on dilution or on the addition of small amount of a strong acid or a strong alkali is called a buffer solution. It is formed by the combination of weak acid/base and its salt with strong base/acid.

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    • Posted by Deepanshu Choudhary 7 years, 1 month ago

    CBSE > Class 11 > Chemistry
    • 0 answers
    ANSWER

    • Posted by Nishant Singh Chauhan 7 years, 1 month ago

    CBSE > Class 11 > Chemistry
    • 0 answers
    ANSWER

    • Posted by Prometheus ? 7 years, 1 month ago

    CBSE > Class 11 > Chemistry
    • 1 answers

    Prashant Singh 7 years, 1 month ago

    merits it provides easier way to remember all the properties of elements by just knowing the position and electronic configuration.it also explains the case of periodicity. demerit position of hydrogen is not cleared it is situated just about the group 1 . lanthanoida and actionoida are not situated in the main group of the periodic table.

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    • Posted by Prometheus ? 7 years, 1 month ago

    CBSE > Class 11 > Chemistry
    • 0 answers
    ANSWER

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