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    • Posted by K@Łp@N@ $Øđh!?? 6 years, 5 months ago

    CBSE > Class 12 > Chemistry
    • 1 answers

    Prabhjot Singh 6 years, 5 months ago

    3

    2Thank You

    ANSWER

    • Posted by Supriya Mandal 6 years, 5 months ago

    CBSE > Class 12 > Chemistry
    • 2 answers

    Nishu Sahu 6 years, 5 months ago

    Oswaal or arihant chapterwise

    0Thank You

    S.....Sharma☺??? .. 6 years, 5 months ago

    Oswaal is the best for previous questions

    1Thank You

    ANSWER

    • Posted by Ready Sonn Langwar 6 years, 5 months ago

    CBSE > Class 12 > Chemistry
    • 1 answers

    Sajid Ali 6 years, 5 months ago

    *********

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    ANSWER

    • Posted by Satyam Pandey 6 years, 5 months ago

    CBSE > Class 12 > Chemistry
    • 2 answers

    K@Łp@N@ $Øđh!?? 6 years, 5 months ago

    ASH is the collective term for Water, Sanitation and Hygiene. Due to their interdependent nature, these three core issues are grouped together to represent a growing sector. While each a separate field of work, each is dependent on the presence of the other. For example, without toilets, water sources become contaminated; without clean water, basic hygiene practices are not possible.

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    Sia ? 6 years, 5 months ago

    WASH is an acronym that stands for "water, sanitation and hygiene". Universal, affordable and sustainable access to WASH is a key public health issue within international development and is the focus of Sustainable Development Goal 6.

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    • Posted by Nisha Gupta 6 years, 5 months ago

    CBSE > Class 12 > Chemistry
    • 1 answers

    Sajid Ali 6 years, 5 months ago

    Not possible.

    0Thank You

    ANSWER

    • Posted by Priyanka Basak 6 years, 5 months ago

    CBSE > Class 12 > Chemistry
    • 2 answers

    K@Łp@N@ $Øđh!?? 6 years, 5 months ago

    Nonmetals react more with metals than with nonmetals. Usually, nonmetals react with other nonmetals in high temperature. Most nonmetals do not react with air in room temperature. White phosphorus is the only nonmetal that reacts with air to form its oxide by burning.

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    Mp? Mp? 6 years, 5 months ago

    Metals when reacted with non metals can form either covalent or ionic bond. Example AlCl 3 is covalent molecule while AlF3 is ionic

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    • Posted by Alok Kumar Shah 6 years, 5 months ago

    CBSE > Class 12 > Chemistry
    • 0 answers
    ANSWER

    • Posted by Nishant Kumar 6 years, 5 months ago

    CBSE > Class 12 > Chemistry
    • 2 answers

    Nishant Kumar 6 years, 5 months ago

    Solve

    0Thank You

    Rishabh Rathi 6 years, 5 months ago

    ln2/(half life)

    1Thank You

    ANSWER

    • Posted by Priya Dharshini 6 years, 5 months ago

    CBSE > Class 12 > Chemistry
    • 2 answers

    Priya Dharshini 6 years, 5 months ago

    Tnq

    0Thank You

    Nishu Sahu 6 years, 5 months ago

    C2H5ONa is a organometallic because Na is metal and it has attached to an organic compound .

    1Thank You

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    • Posted by Priya Dharshini 6 years, 5 months ago

    CBSE > Class 12 > Chemistry
    • 2 answers

    Priya Dharshini 6 years, 5 months ago

    Okay got it thank you....

    0Thank You

    Mp? Mp? 6 years, 5 months ago

    In potassium ferrocyanide the counter iron is in plus two state but in potassium ferricyanide the counter iron is in + 3 state

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    • Posted by Priya Dharshini 6 years, 5 months ago

    CBSE > Class 12 > Chemistry
    • 2 answers

    Sia ? 6 years, 5 months ago

    Molar conductivity: Molar conductivity is conductance of all the ions produced by 1 mole of electrolyte, when electrodes are units distance apart and have sufficient area of cross section to hold electrolyte.
    {tex}{\Lambda _m} = \kappa \frac{A}{l}{/tex}

    1Thank You

    Muskan .. 6 years, 5 months ago

    Molar conductovity

    0Thank You

    ANSWER

    • Posted by Bilal Ahmad 6 years, 5 months ago

    CBSE > Class 12 > Chemistry
    • 0 answers
    ANSWER

    • Posted by Abhay Dixit 6 years, 5 months ago

    CBSE > Class 12 > Chemistry
    • 1 answers

    K@Łp@N@ $Øđh!?? 6 years, 5 months ago

    Reaction B represents a zero-order reaction because the units are in M/s. Zero-order reactions always have rate constants that are represented by molars per unit of time. ... When using the rate function rate=k[A]n with n equal to zero in zero-order reactions. Therefore, rate is equal to the rate constant k.

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    • Posted by Shubhang Raj 6 years, 5 months ago

    CBSE > Class 12 > Chemistry
    • 1 answers

    K@Łp@N@ $Øđh!?? 6 years, 5 months ago

    The lead–acid battery was invented in 1859 by French physicist Gaston Planté and is the earliest, yet still most widely used,[not verified in body] type of rechargeable battery. Despite having a very low energy-to-weight ratio and a low energy-to-volume ratio, its ability to supply high surge currents means that the cells have a relatively large power-to-weight ratio. These features, along with their low cost, make them attractive for use in motor vehicles to provide the high current required by automobile starter motors.

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    • Posted by Keyshav Sharma 6 years, 5 months ago

    CBSE > Class 12 > Chemistry
    • 1 answers

    K@Łp@N@ $Øđh!?? 6 years, 5 months ago

    The true solution is the homogeneous mixture, while colloidal solution and suspension are the heterogeneous mixtures of two or more substances. Another difference between these three types of solution is that the true solution is transparent, while the colloidal solution is translucent and suspension is opaque

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    • Posted by Nisha Gupta 6 years, 5 months ago

    CBSE > Class 12 > Chemistry
    • 1 answers

    S.....Sharma☺??? .. 6 years, 5 months ago

    Aapko reference m sare reaction mil.jaayegee

    2Thank You

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    • Posted by Nikita Singh 6 years, 5 months ago

    CBSE > Class 12 > Chemistry
    • 2 answers

    Kumar Vishal Behera 6 years, 5 months ago

    Nope i think its 70

    0Thank You

    Vijay Yadav 6 years, 5 months ago

    Yes

    0Thank You

    ANSWER

    • Posted by Prabhjeet Singh 6 years, 5 months ago

    CBSE > Class 12 > Chemistry
    • 1 answers

    K@Łp@N@ $Øđh!?? 6 years, 5 months ago

    the difference between Buna – N and Buna – S. 3points. Answer: ... Buna − S is a copolymer which is formed by the polymerisation of 1, 3−butadiene and styrene. Buna − N is a copolymer which is formed by the polymerisation of 1, 3−butadiene and acrylonitrile.

    1Thank You

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    • Posted by Lalit Patidar 6 years, 5 months ago

    CBSE > Class 12 > Chemistry
    • 2 answers

    K@Łp@N@ $Øđh!?? 6 years, 5 months ago

    Molar mass of NaOH=40g per mole no. of moles in 5g of NaOH=5/40=0.125 volume of solution=450mL=0.45L molarity of solution=no.of moles of solute/volume of solution                               =0.125/0.45                               =0.277777777778=0.28

    1Thank You

    Gaurav Seth 6 years, 5 months ago

    Molar mass of NaOH=40g per mole
    no. of moles in 5g of NaOH=5/40=0.125
    volume of solution=450mL=0.45L
    molarity of solution=no.of moles of solute/volume of solution
                                  =0.125/0.45
                                  =0.277777777778=0.28(approx.)

    3Thank You

    ANSWER

    • Posted by Birajdar Suresh 6 years, 5 months ago

    CBSE > Class 12 > Chemistry
    • 1 answers

    Abhiyank Rajouria 6 years, 5 months ago

    CaCO3 +heat--->CaO +Co2 X gms               1.68gms 100                   56 [molecular mass of CaCO3=100u molecular mass of CaO=56u] cross multiply through the equation and solve for x grams of caco3 x=1.62x100/56 =2.89g Cacl2 +Na2Co3 --->Caco3 +2 Nacl x                             2.89g 111                         100 Again cross multiply through the equation and solve for x grams of Cacl2 x=2.89x 111/100 =3.2g %CaCl2 in original mixture 3.2grams Cacl2 over 10gms mixture is 32% Hope it helps ?

    1Thank You

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    • Posted by Pratima Kumari 6 years, 5 months ago

    CBSE > Class 12 > Chemistry
    • 0 answers
    ANSWER

    • Posted by ▪▪Amrit▪▪ ❤ 6 years, 5 months ago

    CBSE > Class 12 > Chemistry
    • 6 answers

    Kumar Vishal Behera 6 years, 5 months ago

    It is shifted to 11th

    1Thank You

    Muskan .. 6 years, 5 months ago

    No it has been deleted

    1Thank You

    Nishu Sahu 6 years, 5 months ago

    No it's not in syllabus

    1Thank You

    Santy Baralu 6 years, 5 months ago

    It is deleted for sylabus

    1Thank You

    Birajdar Suresh 6 years, 5 months ago

    nitrogen family is deleted from the syllabus

    1Thank You

    ▪▪Amrit▪▪ ❤ 6 years, 5 months ago

    plz answee

    1Thank You

    ANSWER

    • Posted by Dilip Kumar 6 years, 5 months ago

    CBSE > Class 12 > Chemistry
    • 1 answers

    K@Łp@N@ $Øđh!?? 6 years, 5 months ago

    It is formed when iron ore is refined in a furnace in the presence of charcoal, limestone and air. It is the basic form of iron used to make decorative wrought iron items. When the pig iron is further refined and a minimum amount of iron added, the crystalline structure of the metal changes and steel is produced.

    0Thank You

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    • Posted by Vishal Kumar 6 years, 5 months ago

    CBSE > Class 12 > Chemistry
    • 2 answers

    K@Łp@N@ $Øđh!?? 6 years, 5 months ago

    Multimolecular colloids are formed by the aggregation of a large number of simple molecules, macromolecules colloids consists of macromolecules having size in the colloidal range. On the other hand, associated colloids are also called micelles, are generally electrolytes. The exist as ions at low concentration.

    1Thank You

    Yogita Ingle 6 years, 5 months ago

    In Multimolecular colloid the atoms or molecules are held by weak vander walls forces and In associated colloid. They behave as normal electrolytes at low concentrations and colloidal only at high concentrations.

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    • Posted by Shalu Sharma 6 years, 5 months ago

    CBSE > Class 12 > Chemistry
    • 0 answers
    ANSWER

    • Posted by Aman Kr.Singh 6 years, 5 months ago

    CBSE > Class 12 > Chemistry
    • 0 answers
    ANSWER

    • Posted by Sonam Karma 6 years, 5 months ago

    CBSE > Class 12 > Chemistry
    • 1 answers

    Gaurav Seth 6 years, 5 months ago

    Given that ,
    κ = 0.0248 S cm−1  and c = 0.20 M
    Formula of molar conductivity,
    Λm = ( k × 1000)/M
    Λm =(0.0248 × 1000 )/0.2 
    Λm =124 S cm2 mol−1

    1Thank You

    ANSWER

    • Posted by Arshad Sindhi 6 years, 5 months ago

    CBSE > Class 12 > Chemistry
    • 2 answers

    K@Łp@N@ $Øđh!?? 6 years, 5 months ago

    SO2 is a colourless and pungent smelling gas.   It can be detected with the help of potassium permanganate solution. When SO2 is passed through an acidified potassium permanganate solution, it decolonizes the solution as it reduces MnO4- ions to Mn2+ ions  5SO2    +     2MnO4-     +   2H2O    →   5SO42-    +   4H+   +  2Mn2+

    1Thank You

    Vishakha Dixit 6 years, 5 months ago

    SO2 is a colorless and pugnent smell gas.It can be detected by using poassium permanganate solution when SO2 is passed through an acidifeid potassium permanganate solution,then it decolonises the solution as it reduces MnO4– ions to Mn2– ions. SO2 give out suffocating smell which indicates its presence...

    1Thank You

    ANSWER

    • Posted by Rekha Sahu 6 years, 5 months ago

    CBSE > Class 12 > Chemistry
    • 2 answers

    Sahil Kumar 6 years, 5 months ago

    Homogeneous - when the reactants and the products are in the same phase in a reaction is called homogenous catalysts. Heterogeneous- when the reactants and the products are not in the same phase in a reaction is called heterogenous catalysts.

    0Thank You

    K@Łp@N@ $Øđh!?? 6 years, 5 months ago

    It is important that you remember the difference between the two terms heterogeneous and homogeneous. Hetero implies different. Heterogeneous catalysis has the catalyst in a different phase from the reactants. ....... Homogeneous catalysis has the catalyst in the same phase as the reactants.

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    • Posted by Yogesh Sehgal 6 years, 5 months ago

    CBSE > Class 12 > Chemistry
    • 1 answers

    Sia ? 6 years, 5 months ago

    The Nernst Equation enables the determination of cell potential under non-standard conditions. It relates the measured cell potential to the reaction quotient and allows the accurate determination of equilibrium constants .

    3Thank You

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