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What is meant by pKw of a solution?what is its value at 298K ?

    • Posted by Dhanjee Tiwari 9 hours ago

    CBSE > Class 11 > Chemistry
    • 0 answers
    ANSWER
    What do you mean by hybridization

    • Posted by Sasmita Padhy 9 hours ago

    CBSE > Class 11 > Chemistry
    • 1 answers

    Yogita Ingle 9 hours ago

    Hybridization is defined as the mixing of the atomic orbitals belonging to the same atom but having slightly different energies so that a redistribution of energy takes place between them resulting in the formation of new orbitals of equal energies and identical shapes. The new orbitals thus formed are known as hybrid orbitals.
    Hybridization of P in PCl5 : sp3d

    0Thank You

    ANSWER
    100 mL of a liquid is contained in an insulated container at a pressure of 1 bar. The pressure is steeply increased to 100 bar. The volume of the liquid is decreased by 1 mL at this constant pressure. Find ∆H and ∆U.

    • Posted by Shreyas Patel 21 hours ago

    CBSE > Class 11 > Chemistry
    • 0 answers
    ANSWER
    Iupac name of ch2-ch-ch2

    • Posted by Kavi Kesri 23 hours ago

    CBSE > Class 11 > Chemistry
    • 0 answers
    ANSWER
    Kal paper hai mera chemistry ka organic ka revision notes chahiye acchi quality ke "asap"

    • Posted by Ayushi Chauhan 1 day ago

    CBSE > Class 11 > Chemistry
    • 2 answers

    Anisha Sharma 5 hours ago

    I think you have done with your exam.... Sorry.... But my suggestion will help you for your future....

    0Thank You

    Anisha Sharma 5 hours ago

    Ayushi.... Here no one can provide you notes.... You can only post your question and answers can be provided to you..... As such notes can not be provided because they can be very long.... And how can anybody type so much.. So dear... You can have them on this app or from internet... Or YouTube I had also asked for Organic chemistry notes but no one gave me answer because it's not possible..... So I am suggesting you to take help from those apps and website... According to me...... School level notes are best available at gravity circle And for iit neet level.... Physics wallah is best for sure.... I hop you will get any help from my comment.. All the best dear 😊👍

    1Thank You

    ANSWER
    Heat of sublimation of Na=xJ Ionization energy of Na=yJ Bond dissociation energy of cl2=aJ e- gain enthalpy of Cl =-b J Enthalpy of formation of Nacl= -c J Then what will be lattice energy of Nacl(s) (1)b+(x+y+c-a/2) (2)b-(a/2+x+y+c)

    • Posted by Bella Carlin 1 day ago

    CBSE > Class 11 > Chemistry
    • 0 answers
    ANSWER
    What is bond order?

    • Posted by Avanish Rathore 1 day ago

    CBSE > Class 11 > Chemistry
    • 2 answers

    Riya Sharma 21 hours ago

    (no. of bond pair electron - no. of lone pair electron) / 2

    1Thank You

    Paarth Bissa 1 day ago

    Bond order=no.of bond present around central atom÷no.of sigma bond

    1Thank You

    ANSWER
    For the reaction : 2A(g) +B(g) _ 2D(g), If ∆U= -10.5 and ∆S= -44.1J/k then calculate the value of ∆G

    • Posted by Sahil Yadav 1 day, 1 hour ago

    CBSE > Class 11 > Chemistry
    • 0 answers
    ANSWER
    What is hookels law

    • Posted by Akash Singh 1 day, 3 hours ago

    CBSE > Class 11 > Chemistry
    • 2 answers

    Yogita Ingle 1 day, 1 hour ago

    • Robert Hooke was the scientist who gave Hooke’s law.
    • Hooke’s law states that within the elastic limit, stress developed is directly proportional to the strain produced in a body.
    • Consider a scenario where we apply external force to the body. As a result stress develops in the body due to this stress there will be a strain produced in the body which implies that there will be some deformation in the body.
    • Because of stress, strain is produced.
    • According to Hooke’s law, if strain increases the stress will increase and vice-versa.
    • The Hooke’s law is applicable to all elastic substances.
    • It does not apply to plastic deformation.

    0Thank You

    Samya Parmar 1 day, 1 hour ago

    Stress is directly proportional to strain

    0Thank You

    ANSWER
    2013 _14 annual exam set AO give me a solve answer this paper questions

    • Posted by Nitesh Jugran 1 day, 10 hours ago

    CBSE > Class 11 > Chemistry
    • 0 answers
    ANSWER
    What is Fazan's rule

    • Posted by Ayush Pandey 1 day, 10 hours ago

    CBSE > Class 11 > Chemistry
    • 1 answers

    Niraj Kumar 1 day, 9 hours ago

    It is used to find covalent character in Ionic r/n.

    2Thank You

    ANSWER
    Complete the reaction :- H3 Po3 ---heat--- =

    • Posted by Wazid Khan 1 day, 19 hours ago

    CBSE > Class 11 > Chemistry
    • 0 answers
    ANSWER
    What is reaction enthlpy

    • Posted by Aman Maan 1 day, 21 hours ago

    CBSE > Class 11 > Chemistry
    • 0 answers
    ANSWER
    How much copper can be obtained from 100g of CuSO4?

    • Posted by Sunil Verma 1 day, 22 hours ago

    CBSE > Class 11 > Chemistry
    • 0 answers
    ANSWER
    Carry out the conversion ethane to ethanol

    • Posted by Ubaid Raza 2 days, 4 hours ago

    CBSE > Class 11 > Chemistry
    • 0 answers
    ANSWER
    Why liquid diffuses slowly as compared to gases?

    • Posted by Kshitij Sinha 2 days, 5 hours ago

    CBSE > Class 11 > Chemistry
    • 1 answers

    Suraj Krishna 2 days, 5 hours ago

    Because of more rapid movement of particles in gases ..so gases diffuse quickly

    1Thank You

    ANSWER
    c2h2 ki structure on the basis of hybridisation

    • Posted by Ravi Saini 2 days, 10 hours ago

    CBSE > Class 11 > Chemistry
    • 1 answers

    Isha Chandra 2 days, 8 hours ago

    Linear

    4Thank You

    ANSWER
    Jal ka rasaynik sutra kya hota hai

    • Posted by Vivek Kumar 2 days, 11 hours ago

    CBSE > Class 11 > Chemistry
    • 1 answers

    Vivek Kumar 2 days, 11 hours ago

    Jal ka rasaynik sutra H2O hota hai

    1Thank You

    ANSWER
    Avogadro sankhya ka Maan kitna hota hai

    • Posted by Vivek Kumar 2 days, 11 hours ago

    CBSE > Class 11 > Chemistry
    • 2 answers

    Isha Chandra 2 days, 8 hours ago

    6.022 × 10^23

    0Thank You

    Vivek Kumar 2 days, 11 hours ago

    S2 ka electronic vinyas

    1Thank You

    ANSWER
    Define aufbau principle .which of the following orbits are possible 1p,2s,2p,and 3f

    • Posted by Rajkumar Prince Giri 2 days, 23 hours ago

    CBSE > Class 11 > Chemistry
    • 6 answers

    Isha Chandra 2 days, 8 hours ago

    2s and 2p are possible

    0Thank You

    Isha Chandra 2 days, 8 hours ago

    A/c to aufbau principle electrons are filled in subshell a/c to increasing order of energy

    0Thank You

    Khushi Akherajot 2 days, 21 hours ago

    2s then 2p are possible among them 1p and 3f does not exist..

    2Thank You

    Khushi Akherajot 2 days, 21 hours ago

    According to this principle, in different subshell of an atom elctrons are filled in increasing order of their energy that is subshell of lower energy is filled first

    1Thank You

    Darshana Yadav 2 days, 22 hours ago

    according to aufbau principle electron fill orbitals starting at the lowest available energy levels before the filling of higher levels....

    1Thank You

    Aman Kumar 2 days, 22 hours ago

    Possible orbits is 1p.....if I m wrong then correct me....but I think its correct.

    1Thank You

    ANSWER
    What is a ribcage?

    • Posted by Sudhir Singh 3 days, 3 hours ago

    CBSE > Class 11 > Chemistry
    • 1 answers

    Yogita Ingle 3 days, 1 hour ago

    The rib cage is a bony and cartilaginous structure. A typical rib cage consists of 24 ribs (12 pairs), the sternum (an inverted T-shaped structure connecting the rib bones), costal cartilages and the 12 thoracic vertebrae shown in the diagram below. The first seven pairs of ribs connect directly to the sternum and are referred to as true ribs. The remaining five pairs of ribs do not connect directly to the sternum and are referred to as false ribs. The rib cage aids in the protection of the heart and lungs.

    1Thank You

    ANSWER
    Which of the following is most acidic? 1) para fluoro phenol 2) para chloro phenol 3) para bromo phenol 4) para iodo phenol

    • Posted by Anjani Kumar 3 days, 11 hours ago

    CBSE > Class 11 > Chemistry
    • 2 answers

    Anjani Kumar 1 day, 1 hour ago

    But fluorine applies the strongest -I effect and as we know that acidic strength is directly proportional to -I, so according to this para fluorophenol must be the most acidic one. But the answer is parachlorophenol. Help.

    0Thank You

    Yogita Ingle 3 days, 8 hours ago

    The acidic strength of phenols is affected by the presence of substituents on the ring.
    An electron-withdrawing group increases the acidic strength by greater dispersal of the negative charge on the phenoxide ion by inductive effect (-I) or by resonance (-R) effect.
    An electron-donating group decreases the acidic strength due to (+I) or (+R) or both.
    Halogens have +R and -I effects, but the -I effect is more dominant.
    Therefore, all halophenols are more acidic(except p-fluorophenol) than phenol itself.
     

    0Thank You

    ANSWER
    Class 11 half yearly paper fail but annual exam will pass I got only 25 mark session 2018 19 in kv school

    • Posted by Nitin Yadav 3 days, 12 hours ago

    CBSE > Class 11 > Chemistry
    • 1 answers

    Manika Gupta 3 days, 1 hour ago

    What u mean

    0Thank You

    ANSWER
    Chemical properties of alkyne

    • Posted by Geetika Gupta 3 days, 20 hours ago

    CBSE > Class 11 > Chemistry
    • 0 answers
    ANSWER
    H3BO3 = ??

    • Posted by Champion Abhishek 3 days, 22 hours ago

    CBSE > Class 11 > Chemistry
    • 1 answers

    Darshana Yadav 3 days, 22 hours ago

    Boric acid

    2Thank You

    ANSWER
    Please complete the reaction B2H6 + 6HNO3 = ?

    • Posted by Champion Abhishek 3 days, 22 hours ago

    CBSE > Class 11 > Chemistry
    • 1 answers

    Aman Kumar 3 days, 22 hours ago

    B2NO3+ 6H2....may be wrong...😐

    3Thank You

    ANSWER
    Define P- block element

    • Posted by Hardik Parmar 4 days, 1 hour ago

    CBSE > Class 11 > Chemistry
    • 3 answers

    Riya Sharma 1 day, 2 hours ago

    Those elements in which last electron enter in p -orbital.

    0Thank You

    Aman Kumar 3 days, 18 hours ago

    P-block elements are those elements which are basically belongs to group 13 to 18....

    1Thank You

    Abhishek Kumar 4 days ago

    P block element are those element which has electronshell 2 in their outermost shell

    0Thank You

    ANSWER
    Whether halogens apply +I affect or -I affect?

    • Posted by Anjani Kumar 4 days, 2 hours ago

    CBSE > Class 11 > Chemistry
    • 2 answers

    Aman Kumar 3 days, 18 hours ago

    -I effect......hope it helps

    1Thank You

    Rahul Singh 4 days, 1 hour ago

    Yes

    1Thank You

    ANSWER
    Arrange b C N O in increasing order of their ionisation enthelapy

    • Posted by Aman Yadav 4 days, 3 hours ago

    CBSE > Class 11 > Chemistry
    • 1 answers

    Rahul Singh 4 days, 1 hour ago

    B C N O

    1Thank You

    ANSWER
    What is buffer solution? Explain and ita type.

    • Posted by Prince Vegeta 4 days, 4 hours ago

    CBSE > Class 11 > Chemistry
    • 1 answers

    Isha Chandra 4 days, 3 hours ago

    Buffer soln is an aqueous solution consisting a weak acid and its conjugate base or vice versa

    2Thank You

    ANSWER

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