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    • Posted by Astitva Suhane 6 years, 10 months ago

    CBSE > Class 11 > Chemistry
    • 1 answers

    Neha Guupta 4 years, 9 months ago

    calculate the morlarity of oxaalic acid in the solution prepared by dissolving its 2.52 g in enough water to form 250 ml of the solution

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    • Posted by Vishwaraj Sindha 6 years, 10 months ago

    CBSE > Class 11 > Chemistry
    • 3 answers

    Yogita Ingle 6 years, 10 months ago

    Addition of heat to a system increases the randomness in the system due to increase in molecular motions. Generally, a system at a higher temperature has greater randomness than at lower temperature. Thus, temperature too helps in the measurement of randomness of particles in a system. Heat added to a system at lower temperature causes greater randomness than in comparison to when heat is added to it at a higher temperature. Thus, entropy change is inversely proportional to the temperature of the system.

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    Shatayu Ganvir 6 years, 10 months ago

    Q/T

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    Surya Narayan 6 years, 10 months ago

    Decreases.. change in entropy=enthalpy/temp.

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    • Posted by Hrithik Jadhav 6 years, 10 months ago

    CBSE > Class 11 > Chemistry
    • 1 answers

    Yogita Ingle 6 years, 10 months ago

    Sigma Bond

    Pi Bond

    During sigma bond formation overlapping orbitals can be either one hybrid and one pure orbital or two pure orbitals and two hybrid orbitals.

    During pi bond formation overlapping orbitals are always two unhybridized orbitals.

    Sigma bond exists independently and allows free rotation.

    Pi-bond always exists along with sigma bond and the rotation is restricted.

    Sigma bonds are stronger bonds.

    Pi bonds are usually less powerful compared to sigma bonds.

    Sigma bonds are formed first when atoms interact.

    Pi bonds are formed after the formation of sigma bonds.

    During the bonding between two atoms, Only one sigma bond is formed.

    Here two pi bonds can exist between two atoms.

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    • Posted by Saurabh Kumar 6 years, 10 months ago

    CBSE > Class 11 > Chemistry
    • 0 answers
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    • Posted by Fablous Yes 6 years, 10 months ago

    CBSE > Class 11 > Chemistry
    • 1 answers

    Roshan Shukla 6 years, 10 months ago

    ∆H=∆U + nR∆T.......(1) (∆H= nCp∆T) (∆U= nCv∆T) For one mole of a gas,n=1 On putting values of ∆H and ∆ U in eq. 1 Cp∆T= Cv∆T+ R∆T (Cp-Cv)∆T=R∆T => Cp-Cv=R

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    • Posted by Shivani Singh 6 years, 10 months ago

    CBSE > Class 11 > Chemistry
    • 0 answers
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    • Posted by Magical India 6 years, 10 months ago

    CBSE > Class 11 > Chemistry
    • 1 answers

    Gursharn Kaur 6 years, 10 months ago

    Ch3Ch2OH-H2O:-CH2DOUBLE BOND CH2

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    • Posted by Benson Das 6 years, 10 months ago

    CBSE > Class 11 > Chemistry
    • 1 answers

    Surya Narayan 6 years, 10 months ago

    On dissolution in water it gives out oh- ions.. by arhenius concept its then classified base Or Metallic oxides are classified as basic in nature

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    • Posted by Amit Kumar 6 years, 10 months ago

    CBSE > Class 11 > Chemistry
    • 0 answers
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    • Posted by Priyanka Meena 6 years, 10 months ago

    CBSE > Class 11 > Chemistry
    • 0 answers
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    • Posted by Ayush Kumar Singh 6 years, 10 months ago

    CBSE > Class 11 > Chemistry
    • 1 answers

    Surya Narayan 6 years, 10 months ago

    Ask me i ve got full knowledge in tht

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    • Posted by Magical India 6 years, 10 months ago

    CBSE > Class 11 > Chemistry
    • 0 answers
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    • Posted by Ishika Rani 6 years, 10 months ago

    CBSE > Class 11 > Chemistry
    • 1 answers

    Gursharn Kaur 6 years, 10 months ago

    Lone pair of electrons are electrons which do not take part in bonding while electron pair takes part in it. It forms bond i.e.,ane ,ene,yne

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    • Posted by Rudra Khatri 6 years, 10 months ago

    CBSE > Class 11 > Chemistry
    • 0 answers
    ANSWER

    • Posted by Siddharth Kumar 6 years, 10 months ago

    CBSE > Class 11 > Chemistry
    • 1 answers

    Sheikh Hisba 6 years, 10 months ago

    In which viva? If it is for any PMT exam then usually basic things have been asked since time immemorial

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    • Posted by Prachi Jaiswal 6 years, 10 months ago

    CBSE > Class 11 > Chemistry
    • 0 answers
    ANSWER

    • Posted by Dãviñdêř Maañ 6 years, 10 months ago

    CBSE > Class 11 > Chemistry
    • 1 answers

    Heena Garg 6 years, 10 months ago

    When CO2 is passed through lime water , it turns milky due to the formation of insoluble calcium carbonate . When excess of CO2 is passed through it , milkyness diappears due to the formation of soluble calcium bicarbonate

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    • Posted by Aastha Mittal 6 years, 10 months ago

    CBSE > Class 11 > Chemistry
    • 2 answers

    Sanidhya Jadaun? 6 years, 10 months ago

    Gaurav pls tell how to upload photos on cbse guide.......?

    3Thank You

    Gaurav Seth 6 years, 10 months ago

    Tetra-tert-butylmethane is a hypothetical organic compound with formula C17H36, or ((H3C)3C)4C. It would be an alkane, specifically the most compact branched isomer of heptadecane. The systematic name is 3,3-di-tert-butyl-2,2,4,4-tetramethylpentane.

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    • Posted by Aastha Mittal 6 years, 10 months ago

    CBSE > Class 11 > Chemistry
    • 0 answers
    ANSWER

    • Posted by Aastha Mittal 6 years, 10 months ago

    CBSE > Class 11 > Chemistry
    • 0 answers
    ANSWER

    • Posted by Abhinav Raj 6 years, 10 months ago

    CBSE > Class 11 > Chemistry
    • 0 answers
    ANSWER

    • Posted by Abhinav Raj 6 years, 10 months ago

    CBSE > Class 11 > Chemistry
    • 0 answers
    ANSWER

    • Posted by Swapnil Singh Tomar 6 years, 10 months ago

    CBSE > Class 11 > Chemistry
    • 0 answers
    ANSWER

    • Posted by Jashan Sidhu 6 years, 10 months ago

    CBSE > Class 11 > Chemistry
    • 0 answers
    ANSWER

    • Posted by Jashan Sidhu 6 years, 10 months ago

    CBSE > Class 11 > Chemistry
    • 0 answers
    ANSWER

    • Posted by Gagan Gautam 6 years, 10 months ago

    CBSE > Class 11 > Chemistry
    • 0 answers
    ANSWER

    • Posted by Mahek Deep 6 years, 10 months ago

    CBSE > Class 11 > Chemistry
    • 1 answers

    Fatima Hussain 6 years, 10 months ago

    Intra bond formed between the same molecule of same or different compound.. Entra formed when hydrogen bond is in between highly electronegative elements of same compound..

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    • Posted by Isha Gurav 6 years, 10 months ago

    CBSE > Class 11 > Chemistry
    • 0 answers
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    • Posted by Inthresh Selvaraj 6 years, 10 months ago

    CBSE > Class 11 > Chemistry
    • 1 answers

    Gaurav Seth 6 years, 10 months ago

    Molar mass of Na2CO3 = (2×23)+12.00+(3×16) = 106 g mol-1

    ∴0.50 mol Na2CO3 means 0.50×106g = 53g

    0.50 M Na2CO3 means 0.50 mol of Na2CO3 i.e. 53g of  Na2CO3 are present in 1litre of the solution.

    2Thank You

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    • Posted by Dhruv Kumar Kalra 6 years, 10 months ago

    CBSE > Class 11 > Chemistry
    • 0 answers
    ANSWER

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