No products in the cart.

Ask questions which are clear, concise and easy to understand.

Ask Question

    • Posted by Mohan Singh 5 years, 11 months ago

    CBSE > Class 12 > Chemistry
    • 5 answers

    Mohan Singh 5 years, 11 months ago

    Thnq so much u all. All are so hepful fir me

    0Thank You

    Peshal Madhukar 5 years, 11 months ago

    Do what can you do. All carry its own importance.

    1Thank You

    Sandeep Tyagi 5 years, 11 months ago

    D block ma acidic basic or neutral medium ki equation. Solution ma colligative property. Raoults law or electro chemistry ma nerst equation. Battery kar lo

    1Thank You

    Sandeep Tyagi 5 years, 11 months ago

    Organic ka sara mechanism name reaction distinguish between kar lo

    1Thank You

    Mohit Sharma 5 years, 11 months ago

    Organic or physical kar Lo

    1Thank You

    ANSWER

    • Posted by Mohan Singh 5 years, 11 months ago

    CBSE > Class 12 > Chemistry
    • 4 answers

    Shivani Thakur 5 years, 11 months ago

    Yss being basic in nature aniline react vth basic alcl3to form salt!..??

    0Thank You

    Peshal Madhukar 5 years, 11 months ago

    Chirag Sharma do make sure before answering any question that it should be correct. NH2 is an activating group and o,p-directing.

    1Thank You

    Peshal Madhukar 5 years, 11 months ago

    Aniline has basic nature and F.C. reaction occurs in +nce of acid anhy. Alcl3 so it forms salt with it

    2Thank You

    Chirag Sharma 5 years, 11 months ago

    1) NH2 group on aniline deactivates the benzene ring so ring cannot undergo friedal craft reaction

    1Thank You

    ANSWER

    • Posted by Abhay Tiwari 5 years, 11 months ago

    CBSE > Class 12 > Chemistry
    • 3 answers

    Shivani Thakur 5 years, 11 months ago

    In salt bridge

    0Thank You

    Ayush Ahlawat 5 years, 11 months ago

    For electrolysis because k+ move to cathode and I- move to anode and get neutral acts as a electrolyte at anode voilet colour observed due to liberation of I2 and at cathode pink colour observed due to formation of OH- ions

    0Thank You

    Avani Bhargava 5 years, 11 months ago

    We use KCl in salt bridge to maintain electrical neutrality and concentration of ion s of the electrolyte

    1Thank You

    ANSWER

    • Posted by Srijan Sinha 5 years, 11 months ago

    CBSE > Class 12 > Chemistry
    • 3 answers

    Yogita Ingle 5 years, 11 months ago

    Potassium tetraiodomercurate(II) is called Nessler's reagent.
    Chemical formula is K2[HgI4].It is used for quantitative estimation of ammonia compounds

    0Thank You

    Shreya Dixit 5 years, 11 months ago

    PatassiumTetraiodomercurate

    0Thank You

    Rakesh Kumar Mishra 5 years, 11 months ago

    HCHO+C2H5OH ------C3H7OH+ (O)-------C2H5COOH +NaOH +Ca (OH)2 ---C2H6+Na2CO3+

    0Thank You

    ANSWER

    • Posted by Unknown Name 5 years, 11 months ago

    CBSE > Class 12 > Chemistry
    • 4 answers

    Chirag Sharma 5 years, 11 months ago

    Grignard reagent hai ye

    0Thank You

    Unknown Name 5 years, 11 months ago

    Thank you

    0Thank You

    Yuvraj Singh 5 years, 11 months ago

    CH3CH2MgBr ..ye grignard reagent h . Isko direct water k sath react krao , Alkane bn jayega. Jitte carbon Grignard reagent m honge uttr hi carbon ka Alkane bn jayega.

    1Thank You

    Neha Choudhary 5 years, 11 months ago

    Phle ch3ch2mgbr Ko alcohol me convert krlo Oxygen k sath react kra k Then alcohol bn jayega usko Alkanes me convert kr lena Phle alchol ko halide me the. Halide ko alkane me by LAH

    2Thank You

    ANSWER

    • Posted by Unknown Name 5 years, 11 months ago

    CBSE > Class 12 > Chemistry
    • 3 answers

    Shivani Thakur 5 years, 11 months ago

    *notes

    0Thank You

    Shivani Thakur 5 years, 11 months ago

    Rivison nites!!

    0Thank You

    Neha Choudhary 5 years, 11 months ago

    Start from chapter 1 haloarens Do ncert questions

    1Thank You

    ANSWER

    • Posted by Devyani Malvi 5 years, 11 months ago

    CBSE > Class 12 > Chemistry
    • 2 answers

    Râhūl ;-),?? 5 years, 11 months ago

    don't worry about ur practicals jss read viva voce given behind every practical ..that really helps a lot

    1Thank You

    Aauush Dubey 5 years, 11 months ago

    Pta nhii

    0Thank You

    ANSWER

    • Posted by Vineet Saini 5 years, 11 months ago

    CBSE > Class 12 > Chemistry
    • 2 answers

    Vaibhav Srivastava 5 years, 11 months ago

    A mole fraction can be define as the ratio of number of moles of a substance with the total number of moles of the whole mixture.

    0Thank You

    Vineet Saini 5 years, 11 months ago

    It is defined as the number of moles of one component to the total number of components in the solution

    0Thank You

    ANSWER

    • Posted by Pragya Singh 5 years, 11 months ago

    CBSE > Class 12 > Chemistry
    • 3 answers

    Mohit Sharma 5 years, 11 months ago

    Polar Means poles that is One side is negative and other side positive group is present

    1Thank You

    Raj Gupta 5 years, 11 months ago

    water is the best example of polar solvent

    0Thank You

    Vaibhav Srivastava 5 years, 11 months ago

    Polar solvents are those solvents in which ionic bonds are found between the atoms of the solvents.

    2Thank You

    ANSWER

    • Posted by Anisha Kanda 5 years, 11 months ago

    CBSE > Class 12 > Chemistry
    • 1 answers

    Aauush Dubey 5 years, 11 months ago

    Pta nhii

    0Thank You

    ANSWER

    • Posted by Karuna Kumari 5 years, 11 months ago

    CBSE > Class 12 > Chemistry
    • 0 answers
    ANSWER

    • Posted by Râhūl ;-),?? 5 years, 11 months ago

    CBSE > Class 12 > Chemistry
    • 2 answers

    Raj Gupta 5 years, 11 months ago

    just go through the last ten years questions

    0Thank You

    Gooo Goo 5 years, 11 months ago

    Read complete NCERT topic wise or prefer ALL IN ONE BOOK

    0Thank You

    ANSWER

    • Posted by Shruti Sharma 5 years, 11 months ago

    CBSE > Class 12 > Chemistry
    • 1 answers

    Vaishnavi Kalvakuntla 5 years, 11 months ago

    Water gets absorbed by albumin to generate proteins

    0Thank You

    ANSWER

    • Posted by Rahul Smith Bara 5 years, 11 months ago

    CBSE > Class 12 > Chemistry
    • 3 answers

    Rahul Smith Bara 5 years, 11 months ago

    Thanks ?

    0Thank You

    Vaishnavi Kalvakuntla 5 years, 11 months ago

    Addition is homogeneous polymer where hydrocarbons are present where as condensation polymer is heterogenous best example teflon

    1Thank You

    Yogita Ingle 5 years, 11 months ago

    Addition Polymerization Condensation Polymerization
    Monomers must have either a double bond or triple bond Monomers must have two similar or different functional groups
    Produces no by-products By-products such as ammonia, water and HCl are produced
    Addition of monomers results in polymers Condensation of monomers result in polymers
    The molecular weight of the resultant polymers is a multiple of monomer’s molecular weight The molecular weight of the resultant polymer is not a multiple of monomer’s molecular weight
    Lewis acids or bases, radical initiators are catalysts in addition polymerization The catalysts in condensation polymerization are catalysts in condensation polymerization.
    Common examples of addition polymerization are PVC, polyethene, Teflon etc. Common examples of condensation polymerization are nylon, bakelite, silicon, etc.

    1Thank You

    ANSWER

    • Posted by Muskan Soni 5 years, 11 months ago

    CBSE > Class 12 > Chemistry
    • 0 answers
    ANSWER

    • Posted by Shubro Nath 5 years, 11 months ago

    CBSE > Class 12 > Chemistry
    • 3 answers

    Yogita Ingle 5 years, 11 months ago

    Ethanal and propanal can be distinguished by iodoform test.

    Iodoform test

    Aldehydes and ketones having at least one methyl group linked to the carbonyl carbon atom responds to the iodoform test. Ethanal having one methyl group linked to the carbonyl carbon atom responds to this test. But propanal does not have a methyl group linked to the carbonyl carbon atom and thus, it does not respond to this state.

    CH3CHO + 3NaOI→HCOOONa + CHI3 + 2NaOH

    1Thank You

    Sandeep Tyagi 5 years, 11 months ago

    Methyl carbonyl group means CH3CO group

    0Thank You

    Sandeep Tyagi 5 years, 11 months ago

    By iodo form test ethanal gives yellow ppt of iodo form and propanal does not show these reaction because in propanal methyl carbonyl group is absent

    2Thank You

    ANSWER

    • Posted by Sandeep Tyagi 5 years, 11 months ago

    CBSE > Class 12 > Chemistry
    • 2 answers

    Sandeep Tyagi 5 years, 11 months ago

    Reaction konsa ha

    0Thank You

    Aman Prakash 5 years, 11 months ago

    First covert propene into benzene then WHEN BENZENE IS TREATED WITH CHLORINE CHLOROBENZENE IS FORMED. AND ON TREATING THIS WITH MIXTURE OF NaOH AND H2O WE GET PHENOL

    3Thank You

    ANSWER

    • Posted by L○V€R ? B●I ? 5 years, 11 months ago

    CBSE > Class 12 > Chemistry
    • 3 answers

    Shivani Thakur 5 years, 11 months ago

    Ysss,,,which have the ability to killla no. Of bacteria s

    0Thank You

    Shivani Thakur 5 years, 11 months ago

    Penicillin...nd Ciprofloxacin

    0Thank You

    Aman Prakash 5 years, 11 months ago

    That which inhibits or kill the wide range of gram +ve and gram-ve bacteria. Eg. Chloramphenicol

    1Thank You

    ANSWER

    • Posted by Sugandha Sharma 5 years, 11 months ago

    CBSE > Class 12 > Chemistry
    • 2 answers

    Aman Prakash 5 years, 11 months ago

    tertiary amines there is no replaceable H atom and therefore, these do not react with acid chloride and hence do not undergo acylation.

    0Thank You

    Chirag Sharma 5 years, 11 months ago

    Because of its deactivating nature

    1Thank You

    ANSWER

    • Posted by Arpit Yadav 5 years, 11 months ago

    CBSE > Class 12 > Chemistry
    • 1 answers

    Sachin Yadav 5 years, 11 months ago

    You can revise chemical test of organic

    0Thank You

    ANSWER

    • Posted by Amol Gùpta 5 years, 11 months ago

    CBSE > Class 12 > Chemistry
    • 15 answers

    Amol Gùpta 5 years, 11 months ago

    Hmm

    0Thank You

    Shivani Thakur 5 years, 11 months ago

    Sry *ishika

    0Thank You

    Shivani Thakur 5 years, 11 months ago

    Okkkk??...don't u woory isika ?..achcha hoga..nd best of luck...?

    1Thank You

    Amol Gùpta 5 years, 11 months ago

    Hope so aaisa hi ho to accha h 17 ko h mera chem ka

    0Thank You

    Shivani Thakur 5 years, 11 months ago

    Ni yrr..don't u woory????dear...sb achcha hoga...practicals k tension to lo h mt..becoz bhot achcha jane vale h..jinke ni hue h..kuch b out of syllabus ni aane ja rha h...they knew v r just students and not the supermen?☺????...bestt of luck..jinke ni hue hain!!?

    1Thank You

    Ishan Mandyal 5 years, 11 months ago

    Yup (kullu me ho gye final)

    0Thank You

    Amol Gùpta 5 years, 11 months ago

    Accha hua but jiss type k question baaki class ne btaye usse thoda drr lg rha h

    0Thank You

    Mannat Kaur Khalsa? 5 years, 11 months ago

    Kyu..acha ni hua kya..?

    1Thank You

    Amol Gùpta 5 years, 11 months ago

    Physics ka practical de kr lg rha h pta nhi aage kya hoga

    0Thank You

    Arpit Yadav 5 years, 11 months ago

    Bhai koi bta do ky puchte hai

    0Thank You

    Řøhăň Řąjpůť ✌️✊ 5 years, 11 months ago

    nope not yet

    1Thank You

    Kriti Sharma 5 years, 11 months ago

    No

    0Thank You

    Aditya Kumar 5 years, 11 months ago

    Huwa

    0Thank You

    Aditya Kumar 5 years, 11 months ago

    Yes

    0Thank You

    Saurabh Ķům-Ŕ 5 years, 11 months ago

    nhi??

    0Thank You

    ANSWER

    • Posted by Garima Choudhary 5 years, 11 months ago

    CBSE > Class 12 > Chemistry
    • 1 answers

    Robot Charan 5 years, 11 months ago

    Due to aromatic nature of benzene

    0Thank You

    ANSWER

    • Posted by Tarik Anwar 5 years, 11 months ago

    CBSE > Class 12 > Chemistry
    • 3 answers

    Chirag Sharma 5 years, 11 months ago

    Then hydrolysis with aqueous kOH

    0Thank You

    Chirag Sharma 5 years, 11 months ago

    Wurtz reaction by Na/ether

    0Thank You

    Shafaqat Kamal 5 years, 11 months ago

    CH3Br +KCN------- CH3-CN +Ni ------- CH3-CH2- NH2 + HNO2 --------- CH3-CH2-OH

    0Thank You

    ANSWER

    • Posted by Shivam Singhania 5 years, 11 months ago

    CBSE > Class 12 > Chemistry
    • 2 answers

    Chirag Sharma 5 years, 11 months ago

    No

    0Thank You

    Pratibha Agnihotri 5 years, 11 months ago

    no

    1Thank You

    ANSWER

    • Posted by Sarathi Selvarayar 5 years, 11 months ago

    CBSE > Class 12 > Chemistry
    • 2 answers

    Chirag Sharma 5 years, 11 months ago

    Square planner

    0Thank You

    Ashwini Chaurasiya 5 years, 11 months ago

    Square planar

    1Thank You

    ANSWER

    • Posted by Kriti Sharma 5 years, 11 months ago

    CBSE > Class 12 > Chemistry
    • 3 answers

    Saikat Nayek 5 years, 11 months ago

    One question from RLVP confirmed

    1Thank You

    Monal Singh 5 years, 11 months ago

    I think revision sheet dekho

    0Thank You

    Adnan Vali 5 years, 11 months ago

    Definition:Azeotropes, colligative property and it's type,negative deviation and positive deviation, Henry law,roults law,method of expressing conc. Of solution.

    1Thank You

    ANSWER

    • Posted by Amol Gùpta 5 years, 11 months ago

    CBSE > Class 12 > Chemistry
    • 0 answers
    ANSWER

    • Posted by Amisha Singh 5 years, 11 months ago

    CBSE > Class 12 > Chemistry
    • 1 answers

    Rajat Barwar 5 years, 11 months ago

    actually this does not need the molar mass of the solute if the solvent is water... You can apply the formula ∆T=i(Kb)m for b.p. change and find the i.m value. Now apply ∆T = i(Kf)m for freezing point change,and now you all the required values and also the freezing point of water, so you can calculaye the f.p. of solution. I would also try to think for a solution if the solvent is not water soon.... Hope this may help you..

    1Thank You

    ANSWER

    • Posted by Rikshesh D. 5 years, 11 months ago

    CBSE > Class 12 > Chemistry
    • 3 answers

    Shivani Thakur 5 years, 11 months ago

    Nooops.....apne according kuck perfect kr lo aap...nd examinar ko bta dena

    0Thank You

    Rishu Kumar 5 years, 11 months ago

    marking scheme ke anusar

    0Thank You

    Rahul Tiwari 5 years, 11 months ago

    No need Only read organic part and on the topic which you made assignment

    1Thank You

    ANSWER

    • Posted by Manish Bisht 5 years, 11 months ago

    CBSE > Class 12 > Chemistry
    • 2 answers

    Shivani Thakur 5 years, 11 months ago

    N2cl

    0Thank You

    Yogita Ingle 5 years, 11 months ago

    Diazonium salts are a group of organic compounds which shares one common functional group R-N + 2X. In R-N + 2X, R is an organic group. For example, alkyl or aryl group. And X is organic or inorganic anions. For example Halogen, Chlorine, Bromine, etc. Diazonium salts are also known as Diazonium compounds. By heating it in the water we can make Phenols.

    0Thank You

    ANSWER

    myCBSEguide App

    myCBSEguide

    Trusted by 1 Crore+ Students

    Install Now

    Test Generator

    Test Generator

    Create papers online. It's FREE.

    Try Now

    CUET Mock Tests

    CUET Mock Tests

    75,000+ questions to practice only on myCBSEguide app

    Install Now
    Google Play

    Download myCBSEguide App

    All Courses

    Other Websites

    CBSE Courses

    Resources

    Corporate

    NCERT Solutions

    CBSE Sample Papers

    All Content and Intellectual Property is under Copyright Protection | myCBSEguide.com ©2007-2026