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    • Posted by Shubham Tyagi 7 years, 11 months ago

    CBSE > Class 12 > Chemistry
    • 0 answers
    ANSWER

    • Posted by B J 7 years, 11 months ago

    CBSE > Class 12 > Chemistry
    • 0 answers
    ANSWER

    • Posted by Vishal Garg 7 years, 11 months ago

    CBSE > Class 12 > Chemistry
    • 1 answers

    Nidhi Mishra 7 years, 11 months ago

    learn all named reactions, acc. to my teacher

    1Thank You

    ANSWER

    • Posted by Shadab Saifi 7 years, 11 months ago

    CBSE > Class 12 > Chemistry
    • 0 answers
    ANSWER

    • Posted by Shivanshu Yadav 7 years, 11 months ago

    CBSE > Class 12 > Chemistry
    • 1 answers

    Kadambari Dubey 7 years, 11 months ago

    Directly use the formula √3a=4r We are given with edge length hence putting a =326.5pm , it will give the radius r.

    2Thank You

    ANSWER

    • Posted by Shivanshu Yadav 7 years, 11 months ago

    CBSE > Class 12 > Chemistry
    • 2 answers

    Shivanshu Yadav 7 years, 11 months ago

    Plz in detail

    0Thank You

    Rohtash Kumar 7 years, 11 months ago

    AuCd3

    0Thank You

    ANSWER

    • Posted by Akshita Gupta 7 years, 11 months ago

    CBSE > Class 12 > Chemistry
    • 1 answers

    Lalit Sharma 7 years, 11 months ago

    CH2Cl2

    3Thank You

    ANSWER

    • Posted by Shatabdi Basu 7 years, 11 months ago

    CBSE > Class 12 > Chemistry
    • 1 answers

    Bhumi Jain 7 years, 11 months ago

    Metallic solids- 1.Hard 2.Conducts electricity 3High melting point 4.Ex: Fe,Cu Network solids- 1.Soft 2.Insulator 3.Very high melting point 4.Ex: SiO2,C (diamond)

    2Thank You

    ANSWER

    • Posted by Pushpanjali Saxena 7 years, 11 months ago

    CBSE > Class 12 > Chemistry
    • 1 answers

    Divyansh Tamrakar 7 years, 11 months ago

    Optical inactive compound because of presence of plane of symmetry

    2Thank You

    ANSWER

    • Posted by Greatson Nongthongbam 7 years, 11 months ago

    CBSE > Class 12 > Chemistry
    • 0 answers
    ANSWER

    • Posted by Hemant Shahi 7 years, 11 months ago

    CBSE > Class 12 > Chemistry
    • 1 answers

    Harsh Sangal 7 years, 11 months ago

    15 Jan to 25 feb

    0Thank You

    ANSWER

    • Posted by Mukesh Mehra 7 years, 11 months ago

    CBSE > Class 12 > Chemistry
    • 3 answers

    Divyansh Tamrakar 7 years, 11 months ago

    Test

    1Thank You

    Divyansh Tamrakar 7 years, 11 months ago

    Haloform tedt

    1Thank You

    Pushpanjali Saxena 7 years, 11 months ago

    Ethanol gives Iodoform test wheras methanol does not give this test.

    7Thank You

    ANSWER

    • Posted by N K 7 years, 11 months ago

    CBSE > Class 12 > Chemistry
    • 1 answers

    Shruti Mangal 7 years, 11 months ago

    A test to differentiate between aldehyde and ketone

    2Thank You

    ANSWER

    • Posted by N K 7 years, 11 months ago

    CBSE > Class 12 > Chemistry
    • 1 answers

    Gurvinder Kaur 7 years, 11 months ago

    Tollens' reagent is freshly prepared ammonical silver nitrate solution. Aldehydes react with tollens' reagent and a bright silver mirror is formed due to the formation of silver metal. The aldehydes will get oxidised to carboxylate anion. This reaction occurs in alkaline medium. Ketones will not give silver mirror test. The reaction is :
    RCHO + 2[Ag (NH3)2]+ + 3OH- → RCOO- + 2Ag + 2H2O + 4NH3

    3Thank You

    ANSWER

    • Posted by Tarun Singh 7 years, 11 months ago

    CBSE > Class 12 > Chemistry
    • 1 answers

    Tarun Yadav 7 years, 11 months ago

    Firstly react methane with chlorobenzene in presence of anhydrous AlCl3. Then react this with KMnO4.

    1Thank You

    ANSWER

    • Posted by Shivanshu Yadav 7 years, 11 months ago

    CBSE > Class 12 > Chemistry
    • 1 answers

    Sudhanshu Saumya 7 years, 11 months ago

    React phenol with Zn dust

    2Thank You

    ANSWER

    • Posted by Babar Lara 7 years, 11 months ago

    CBSE > Class 12 > Chemistry
    • 1 answers

    Gurvinder Kaur 7 years, 11 months ago

    The phenomenon of attracting and retaining the molecules of a substance on the surface of a liquid or a solid resulting into a higher concentration of the molecules on the surface is called adsorption. The substance thus adsorbed on the surface is called the adsorbate and the substance on which it is absorbed is known as adsorbent. The reverse process i.e. removal of the adsorbed substance from the surface is called desorption. The adsorption of gases on the surface of metals is called occlusion.

    2Thank You

    ANSWER

    • Posted by Abc Xyz 7 years, 11 months ago

    CBSE > Class 12 > Chemistry
    • 1 answers

    Sudhanshu Saumya 7 years, 11 months ago

    Due to presence of an odd electron it dimerises to gain stability.

    3Thank You

    ANSWER

    • Posted by J K 7 years, 11 months ago

    CBSE > Class 12 > Chemistry
    • 1 answers

    Sudhanshu Saumya 7 years, 11 months ago

    2-Bromopropane

    5Thank You

    ANSWER

    • Posted by Manjot Singh 7 years, 11 months ago

    CBSE > Class 12 > Chemistry
    • 1 answers

    Nitin Murali 7 years, 11 months ago

    Resonance stabilization

    1Thank You

    ANSWER

    • Posted by Sweety Yadav 7 years, 11 months ago

    CBSE > Class 12 > Chemistry
    • 1 answers

    Arti Kumari 7 years, 11 months ago

    In making sheets,bristles for brushes

    1Thank You

    ANSWER

    • Posted by Adnan Raza 7 years, 11 months ago

    CBSE > Class 12 > Chemistry
    • 1 answers

    Gurvinder Kaur 7 years, 11 months ago

    J = sigma E
    We know, J = I/A
    I = n e A (vd) [in terms of drift velocity of electrons]
    Therefore, J = neA(vd)/A = ne (vd)
    Now, vd = -e E (tau) /m [ drift velocity of electrons in terms of relaxation time tau]
    Therefore, J = n (e square) E (tau)/m
    And we know, rho = m / n (e square) (tau)
    And 1/rho = sigma = n (e square) (tau) / m
    Therefore, J = sigma E

    1Thank You

    ANSWER

    • Posted by Prashant Singh 7 years, 11 months ago

    CBSE > Class 12 > Chemistry
    • 0 answers
    ANSWER

    • Posted by Nabeel Khan 7 years, 11 months ago

    CBSE > Class 12 > Chemistry
    • 1 answers

    Sudhanshu Saumya 7 years, 11 months ago

    Due to scattering phenomena of light white light coming from sun strikes the dust particles present in atmosphere and scatters all around. The light having shorter wavelength scatters more than longer wavelength. So violet scatters maximum and red the minimum. But as our eyes are not sensitive to violet colour we receive the second most scattered light blue in our eyes.

    4Thank You

    ANSWER

    • Posted by Prince Srivastava 7 years, 11 months ago

    CBSE > Class 12 > Chemistry
    • 2 answers

    Vidhi Rawat 7 years, 11 months ago

    AgBr

    2Thank You

    Rohit Gautam 7 years, 11 months ago

    Give the example of two compound which show both schottky and frenkle defect

    1Thank You

    ANSWER

    • Posted by Sahil Wallu 7 years, 11 months ago

    CBSE > Class 12 > Chemistry
    • 2 answers

    Chinkee Jaatrana 7 years, 11 months ago

    The process of converting freshly prepared precipitate into colliodial sol by adding a small quantity of electrolyte is called peptization

    0Thank You

    Sharma Saabh 7 years, 11 months ago

    peptization is a process in which we convert ppt into colloidal sol by shaking....... ..

    0Thank You

    ANSWER

    • Posted by Aayush Mittal 7 years, 11 months ago

    CBSE > Class 12 > Chemistry
    • 0 answers
    ANSWER

    • Posted by Sudhanshu Saumya 7 years, 11 months ago

    CBSE > Class 12 > Chemistry
    • 3 answers

    Sahil Brj 7 years, 11 months ago

    React phenol with zn product will zno and benzene

    1Thank You

    Ishika Tanwani 7 years, 11 months ago

    Nano2+hcl. And then h3po2+h3o+

    0Thank You

    Shivanshu Yadav 7 years, 11 months ago

    React with propean phir cummen banega phir react with o2

    0Thank You

    ANSWER

    • Posted by Kishan Jha 7 years, 11 months ago

    CBSE > Class 12 > Chemistry
    • 1 answers

    Anshuman Singh 7 years, 11 months ago

    When alkyl cyanide is treated with hcl and sNcl2 reduce to imine after hydrolysis give aldehyde such reaction is called stephen reaction

    7Thank You

    ANSWER

    • Posted by Vindhyachal Singh 7 years, 11 months ago

    CBSE > Class 12 > Chemistry
    • 1 answers

    Gurvinder Kaur 7 years, 11 months ago

    Rate law is the expression in which reaction rate is given in terms of molar concentration of ractants with each term raised to some power, which may or may not be same as stoichiometric coefficient of the reacting species in a balanced chemical equation.
    For example: 2NO + O2 {tex}\to{/tex} 2NO2
    hence the rate law = k [NO]2 [O2]
    here k is rate constant.

    0Thank You

    ANSWER

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