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    • Posted by Anushka Singh 6 years, 11 months ago

    CBSE > Class 12 > Chemistry
    • 1 answers

    Jayant Tehlan 6 years, 11 months ago

    Whenever addition take place in unsymmetrical alkene or alkyne then hydrogen attach on carbon having more hydrogen

    1Thank You

    ANSWER

    • Posted by Jayant Tehlan 6 years, 11 months ago

    CBSE > Class 12 > Chemistry
    • 0 answers
    ANSWER

    • Posted by Yo Yo Honey Singh ? 6 years, 11 months ago

    CBSE > Class 12 > Chemistry
    • 2 answers

    Yogita Ingle 6 years, 11 months ago

    Aspartame becomes unstable at cooking temperature. This is the reason why its use is limited to cold foods and drinks.
    Aspartame is the most useful artificial sweetener. Its use is limited to cold foods and soft drinks because it is unstable at cooking temperature.

    2Thank You

    Jayant Tehlan 6 years, 11 months ago

    Because it is unstable at cooking temperature

    2Thank You

    ANSWER

    • Posted by Yo Yo Honey Singh ? 6 years, 11 months ago

    CBSE > Class 12 > Chemistry
    • 1 answers

    Kapil Yadav 6 years, 11 months ago

    Molality , mole fraction ,ppm and mass %

    0Thank You

    ANSWER

    • Posted by Yo Yo Honey Singh ? 6 years, 11 months ago

    CBSE > Class 12 > Chemistry
    • 2 answers

    Kalas Sahu 6 years, 11 months ago

    K= mol -1 L sec-1

    1Thank You

    Jayant Tehlan 6 years, 11 months ago

    K=mol-1 L s-1

    1Thank You

    ANSWER

    • Posted by Yo Yo Honey Singh ? 6 years, 11 months ago

    CBSE > Class 12 > Chemistry
    • 1 answers

    Jayant Tehlan 6 years, 11 months ago

    The process of converting freshly prepared PPT into colloidal form by adding suitable electrolyte

    1Thank You

    ANSWER

    • Posted by Aman Kumar 6 years, 11 months ago

    CBSE > Class 12 > Chemistry
    • 1 answers

    Tushar Gehlwat 6 years, 11 months ago

    Directly by aldol condesation ...

    0Thank You

    ANSWER

    • Posted by Sourabh Saini 6 years, 11 months ago

    CBSE > Class 12 > Chemistry
    • 1 answers

    Jayant Tehlan 6 years, 11 months ago

    Bi (V) means Bi has lost 5 electrons and it is in a +5 oxidation state. Bi (V) is a stronger oxidizing agent than Sb (V) means that it will pick electrons from a reducing agent (electron donor) much faster than Sb (V) to go from a unstable +5 to a more stable +3 oxidation state.

    2Thank You

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    • Posted by Lucky Jha 6 years, 11 months ago

    CBSE > Class 12 > Chemistry
    • 0 answers
    ANSWER

    • Posted by Añnü Råj 6 years, 11 months ago

    CBSE > Class 12 > Chemistry
    • 1 answers

    Rishabh Sahu 6 years, 11 months ago

    Rate law of a chemical reaction is found experimentally by varying the concentrations of reactants and measuring the rate. However if you want to solve questions regarding finding rate laws then the following points are important. The rate of an elementary reaction varies with the n th power of the concentrations of a reactant where n is the stoichiometric coefficient of the reactant in a balanced chemical equation.

    0Thank You

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    • Posted by Yash Singh 6 years, 11 months ago

    CBSE > Class 12 > Chemistry
    • 0 answers
    ANSWER

    • Posted by ???? Malik 6 years, 11 months ago

    CBSE > Class 12 > Chemistry
    • 2 answers

    Bhavya Sharma 6 years, 11 months ago

    Partial pressure of gas in vapour phase is directly proportional to Mole fraction of gas in liquid P(a) ✓ X(a)

    2Thank You

    Anjana Sherawat 6 years, 11 months ago

    Solubility is directly proportional to pressure of a gas

    2Thank You

    ANSWER

    • Posted by Kapil Yadav 6 years, 11 months ago

    CBSE > Class 12 > Chemistry
    • 1 answers

    Anjana Sherawat 6 years, 11 months ago

    I think addition

    3Thank You

    ANSWER

    • Posted by Krishnendu S K 6 years, 11 months ago

    CBSE > Class 12 > Chemistry
    • 1 answers

    Kapil Yadav 6 years, 11 months ago

    Reduction of o2 releases a lot of energy

    2Thank You

    ANSWER

    • Posted by Mohit Sharma 6 years, 11 months ago

    CBSE > Class 12 > Chemistry
    • 4 answers

    Kapil Yadav 6 years, 11 months ago

    And u may consult it 2 ncert

    2Thank You

    Kapil Yadav 6 years, 11 months ago

    As it is prep.of haloalkane from alcohol

    1Thank You

    Kapil Yadav 6 years, 11 months ago

    It should be as,CH3-CH2-OH +SOCl2 gives CH3-CH2-Cl + SO2+ HCl

    1Thank You

    Kapil Yadav 6 years, 11 months ago

    Its a wrong rxn.

    1Thank You

    ANSWER

    • Posted by Viprakumar Mishra 6 years, 11 months ago

    CBSE > Class 12 > Chemistry
    • 1 answers

    Tushar Gehlwat 6 years, 11 months ago

    By treatment with KMnO4

    1Thank You

    ANSWER

    • Posted by Anoop Kumar 6 years, 11 months ago

    CBSE > Class 12 > Chemistry
    • 0 answers
    ANSWER

    • Posted by Krishnendu S K 6 years, 11 months ago

    CBSE > Class 12 > Chemistry
    • 2 answers

    Sourabh Sheokand 6 years, 11 months ago

    Due to size of S ,Se and Te .and when size is increasing then vander well force is increase.

    2Thank You

    Navya Singh 6 years, 11 months ago

    Sf4 is gas due to p-pie p-pie bonding

    1Thank You

    ANSWER

    • Posted by Gunjan Chaudhary 6 years, 11 months ago

    CBSE > Class 12 > Chemistry
    • 1 answers

    Bhavya Sharma 6 years, 11 months ago

    For a fcc unit cell , Density = 4×molarmass NA×a3 = 4×207gmol−1 6.02×1023mol−1×a3 =11.35gcm−3 Then a=( 4×207 6.02×1023×11.35cm−3 )1/3 =4.95×10−8cm a √ 2 =4r From geametry r= 4.95×10−8cm 2 √ 2 =1.75×10−8cm So the radius of lead atom is 1.75×10−8cm or 175pm

    5Thank You

    ANSWER

    • Posted by Bhavya Sharma 6 years, 11 months ago

    CBSE > Class 12 > Chemistry
    • 3 answers

    Mohd Faiz 6 years, 11 months ago

    Non-ideal solutions exhibit either positive or negative deviations from Raoult's law. These deviations are caused due to difference in intermolecular forces of attraction between solute molecules in pure solute, solvent molecules in pure solvent and solute and solvent in a solution.

    2Thank You

    Bhavya Sharma 6 years, 11 months ago

    @Anjana sherawat. When the intermolecular force is more then which deviation will it show.....????

    3Thank You

    Anjana Sherawat 6 years, 11 months ago

    Depends upon different intermolecular forces between reactants and products and reactant-products

    2Thank You

    ANSWER

    • Posted by Tannu Dahiya 6 years, 11 months ago

    CBSE > Class 12 > Chemistry
    • 1 answers

    Mohd Faiz 6 years, 11 months ago

    Ferrimagnetic Fe3O4 on heating to 850 K becomes paramagnetic. This is due to alignment of spins in one direction on heating.

    1Thank You

    ANSWER

    • Posted by Tannu Dahiya 6 years, 11 months ago

    CBSE > Class 12 > Chemistry
    • 2 answers

    Mohd Faiz 6 years, 11 months ago

    not fe2O4 its fe3O4

    1Thank You

    Tannu Dahiya 6 years, 11 months ago

    Sorry this is wrong question

    3Thank You

    ANSWER

    • Posted by Jashan Singh 6 years, 11 months ago

    CBSE > Class 12 > Chemistry
    • 1 answers

    Sourabh Sheokand 6 years, 11 months ago

    By practice only.????

    1Thank You

    ANSWER

    • Posted by Piyush Garg 6 years, 11 months ago

    CBSE > Class 12 > Chemistry
    • 0 answers
    ANSWER

    • Posted by Rajat Dhull 6 years, 11 months ago

    CBSE > Class 12 > Chemistry
    • 1 answers

    Yogita Ingle 6 years, 11 months ago

    Pentan-2-one is a methyl ketone. Thus, it responds to this test. But pentan-3-one not being a methyl ketone does not respond to this test.

    2Thank You

    ANSWER

    • Posted by Raja Kr 6 years, 11 months ago

    CBSE > Class 12 > Chemistry
    • 1 answers

    Yogita Ingle 6 years, 11 months ago

    Emulsions : Emulsions are liquid-liquid colloidal systems in which both, the dispersed phases as well as the dispersion medium are liquids. An emulsion may be defined as a colloidal dispersion of two immiscible or partially immiscible liquids, in which one liquid acts as the dispersion medium and the other as the dispersed phase.
    Emulsification: It is the process of breaking down of large lipid droplets into small droplets. This provides a larger surface area on which enzyme pancreatic lipase can act to digest the fats into fatty acids and glycerol which are easily absorbed through small intestines. Bile salts are extremely important for emulsification of fats.

    2Thank You

    ANSWER

    • Posted by Saptarshi Banik 6 years, 11 months ago

    CBSE > Class 12 > Chemistry
    • 0 answers
    ANSWER

    • Posted by Komal Kanojia 6 years, 11 months ago

    CBSE > Class 12 > Chemistry
    • 1 answers

    Sagar Saini 6 years, 11 months ago

    Because when R-oh react with h2o it easily gain a proton from h2o which shows it is a strong base

    1Thank You

    ANSWER

    • Posted by Kamal Pandey 6 years, 11 months ago

    CBSE > Class 12 > Chemistry
    • 2 answers

    Kamal Pandey 6 years, 11 months ago

    Thanks ??????

    0Thank You

    Harisha Goothy 6 years, 11 months ago

    Starch

    1Thank You

    ANSWER

    • Posted by Pallavi Pradhan 6 years, 11 months ago

    CBSE > Class 12 > Chemistry
    • 1 answers

    Mohd Faiz 6 years, 11 months ago

    Alkynes can be reduced to trans-alkenes with the use of Sodium dissolved in an ammonia solvent.

    2Thank You

    ANSWER

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