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    • Posted by Alok Yadav 6 years, 8 months ago

    CBSE > Class 12 > Chemistry
    • 1 answers

    Yogita Ingle 6 years, 8 months ago

    Substitutional solid solution  strengthening occurs when the solute atom is large enough that it can replace solvent atoms in their lattice positions. Some alloying elements are only soluble in small amounts, whereas some solvent and solute pairs form a solution  over the whole range of binary compositions

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    • Posted by Alok Yadav 6 years, 8 months ago

    CBSE > Class 12 > Chemistry
    • 1 answers

    Yogita Ingle 6 years, 8 months ago

    Substitutional solid solution  strengthening occurs when the solute atom is large enough that it can replace solvent atoms in their lattice positions. Some alloying elements are only soluble in small amounts, whereas some solvent and solute pairs form a solution  over the whole range of binary compositions

    1Thank You

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    • Posted by Dilip Kumar 6 years, 8 months ago

    CBSE > Class 12 > Chemistry
    • 3 answers

    Mini Nair 6 years, 8 months ago

    It is still needed for competitive exams like engineering medical. Ignore my first comment

    0Thank You

    Mini Nair 6 years, 8 months ago

    No it is still there in both cbse and for neet and jee

    0Thank You

    Aman Kumar 6 years, 8 months ago

    Haan...

    0Thank You

    ANSWER

    • Posted by Chitranjan Yadav 6 years, 8 months ago

    CBSE > Class 12 > Chemistry
    • 0 answers
    ANSWER

    • Posted by Tisha Ahuja 6 years, 8 months ago

    CBSE > Class 12 > Chemistry
    • 0 answers
    ANSWER

    • Posted by Vipin Tyagi 6 years, 8 months ago

    CBSE > Class 12 > Chemistry
    • 2 answers

    Aman Kumar 6 years, 8 months ago

    Hmm right

    2Thank You

    Priya Dharshini ? 6 years, 8 months ago

    All questions solutions are available in this app... even intext questions

    5Thank You

    ANSWER

    • Posted by Krishna Tec 6 years, 8 months ago

    CBSE > Class 12 > Chemistry
    • 3 answers

    Krishna Tec 6 years, 8 months ago

    Ya thanks

    1Thank You

    Priya Dharshini ? 6 years, 8 months ago

    Ya what kumar said is correct pysics wallah is good... if not unacademy app videos are good they can teach u for boards and competitive exams also

    2Thank You

    Priya Dharshini ? 6 years, 8 months ago

    For chemistry ezee chemistry youtube channel is good

    1Thank You

    ANSWER

    • Posted by Yuvraj Anand 6 years, 8 months ago

    CBSE > Class 12 > Chemistry
    • 0 answers
    ANSWER

    • Posted by Vedank Dubey 6 years, 8 months ago

    CBSE > Class 12 > Chemistry
    • 1 answers

    Yogita Ingle 6 years, 8 months ago

    The atoms, molecules, or ions that are bound to the coordination centre or the central atom/ion are referred to as ligands.

    These ligands can either be a simple ion or molecule (such as Cl– or NH3) or in the form of relatively large molecules, such as ethane-1,2-diamine (NH2-CH2-CH2-NH2).

    2Thank You

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    • Posted by Ragini Singh 6 years, 8 months ago

    CBSE > Class 12 > Chemistry
    • 2 answers

    Yogita Ingle 6 years, 8 months ago

    Semiconductor : Semiconductors are those substances whose conductivity lies between conductors and insulators. e.g., germanium, silicon, carbon etc.

    2Thank You

    Priya Dharshini ? 6 years, 8 months ago

    any of a class of solids (such as germanium or silicon) whose electrical conductivity is between that of a conductor and that of an insulator in being nearly as great as that of a metal at high temperatures and nearly absent at low temperatures.

    2Thank You

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    • Posted by Sachin Yaduvanshi 6 years, 8 months ago

    CBSE > Class 12 > Chemistry
    • 0 answers
    ANSWER

    • Posted by Kumar Bhargav 6 years, 8 months ago

    CBSE > Class 12 > Chemistry
    • 0 answers
    ANSWER

    • Posted by Shivam Shukla 6 years, 8 months ago

    CBSE > Class 12 > Chemistry
    • 6 answers

    Jagritee Jaiswal 6 years, 8 months ago

    Ncert with sample paper ☺️☺️

    0Thank You

    Ruchi Mavi 6 years, 8 months ago

    Only read ncert book more than times

    0Thank You

    Priya Dharshini ? 6 years, 8 months ago

    Arihant,examidea,modern abc these for board... for jee op tandon for organic,inorganic and p.bahadur for physical chemistry

    1Thank You

    Nisha ... 6 years, 8 months ago

    Yah that's also good..

    1Thank You

    Aman Kumar 6 years, 8 months ago

    Modern abc ,I suggest

    3Thank You

    Nisha ... 6 years, 8 months ago

    You can choose pradep's or arihant..

    3Thank You

    ANSWER

    • Posted by Manoj Kaushik 6 years, 8 months ago

    CBSE > Class 12 > Chemistry
    • 1 answers

    Shatayu Ganvir 6 years, 8 months ago

    Remember like dissolves like

    0Thank You

    ANSWER

    • Posted by Aditya Parida 6 years, 8 months ago

    CBSE > Class 12 > Chemistry
    • 2 answers

    Priya Dharshini ? 6 years, 8 months ago

    Sand,concrete

    1Thank You

    Aman Yadav 6 years, 8 months ago

    Alloy

    3Thank You

    ANSWER

    • Posted by Ragraj Singh Chauhan 6 years, 8 months ago

    CBSE > Class 12 > Chemistry
    • 2 answers

    Shivam Shukla 6 years, 8 months ago

    Itni Jldi

    0Thank You

    Kumar Vishal Behera 6 years, 8 months ago

    Best of luck

    2Thank You

    ANSWER

    • Posted by Swetha Sri 6 years, 8 months ago

    CBSE > Class 12 > Chemistry
    • 3 answers

    Swetha Sri 6 years, 8 months ago

    ,????

    0Thank You

    Yogita Ingle 6 years, 8 months ago

    Glycolic acid (hydroacetic acid or hydroxyacetic acid); chemical formula C2H4O3 (also written as HOCH2CO2H), is the smallest α-hydroxy acid (AHA). This colorless, odorless, and hygroscopic crystalline solid is highly soluble in water. It is used in various skin-care products. Glycolic acid is found in some sugar-crops. A glycolate or glycollate is a salt or ester of glycolic acid.

    1Thank You

    Priya Dharshini ? 6 years, 8 months ago

    Formula: C2H4O3 IUPAC ID: 2-Hydroxyethanoic acid. It is highly soluable in water and used in skin products. I think so it is found in sugar cane or any other sugar crops

    1Thank You

    ANSWER

    • Posted by Riya Sinha 6 years, 8 months ago

    CBSE > Class 12 > Chemistry
    • 1 answers

    Nikhil Bhimra 6 years, 8 months ago

    Yes

    1Thank You

    ANSWER

    • Posted by Prachi Vankar 6 years, 8 months ago

    CBSE > Class 12 > Chemistry
    • 3 answers

    Vidushi Shukla 6 years, 8 months ago

    If u have pradeep then u can find it. There will be a section - ncert intext questions (solved).

    0Thank You

    Priya Dharshini ? 6 years, 8 months ago

    U get it in this app if u go to ncert solutions itself... starting questions are of intext questions only

    0Thank You

    Kumar Vishal Behera 6 years, 8 months ago

    Which chapter?

    0Thank You

    ANSWER

    • Posted by Pranav Sharma 6 years, 8 months ago

    CBSE > Class 12 > Chemistry
    • 0 answers
    ANSWER

    • Posted by Shashi J K Yadav 6 years, 8 months ago

    CBSE > Class 12 > Chemistry
    • 3 answers

    Jagritee Jaiswal 6 years, 8 months ago

    No its involve in class 11 chemistry

    0Thank You

    Kumar Bhargav 6 years, 8 months ago

    No

    1Thank You

    Aman Kumar 6 years, 8 months ago

    No ....it is removed

    2Thank You

    ANSWER

    • Posted by Anisha Sharma 6 years, 8 months ago

    CBSE > Class 12 > Chemistry
    • 1 answers

    Priya Dharshini ? 6 years, 8 months ago

    Infact all questions are important since this is the reference for our 12th board dont try to skip questions of ncert. Complete ncert then move to other guides

    1Thank You

    ANSWER

    • Posted by Riya Sinha 6 years, 8 months ago

    CBSE > Class 12 > Chemistry
    • 2 answers

    Harsh Mishra 6 years, 8 months ago

    As per the new exam pattern, CBSE has given more weight to school-based assessment and objective type questions. The internal assessment was part of CBSE assessment system but it was not available in all the subjects. Now, in the new scheme of assessment all the subjects will have 25% (20 Marks out of total 100) marks for internal assessment. Thus, in March 2020 exam, CBSE will conduct board exam for 80 marks only. However, some science subjects and fine arts will continue to be of 70 and 30 marks. Now students will find 33% internal choice in all the sections in the question paper in all subjects. Thus, students will have plenty of options to choose the questions. This will help them to answer the question that they know better. Means, the overall difficulty level of the question paper will be reduced by 33 percent. Another good news for students is, CBSE will put 25% objective type questions including multiple-choice questions in all the subjects. It means, there will be at least 20 Marks questions out of total 80 marks will be objective type questions. Now the subjective questions where students need to write detailed answer will carry only 60 marks. In other words, the overall 60% of assessment need to write answers in detail. Rest 40% is objective type and internal assessment. We know that all competitive and entrance exams have exactly opposite assessment process that of adopted by CBSE in schools. CBSE assess the students on subjective questions whereas, after school, students face objective questions in exams. They have to join these so-called gateways to success along with their schools as the school syllabus do not teach them how to tackle objective questions in entrance exams. Yes, the new initiative will certainly help students get ready for the assessment process after school exams.That's All, I found out out and...... you'n also check about it in this App Too.........

    2Thank You

    Kumar Vishal Behera 6 years, 8 months ago

    Hey according to my school teacher all types of questions will come but in bits Ex- in 5 marks question there will be 5 bits. For chemistry only. You can check the cbse syllabus from this app to know more.

    2Thank You

    ANSWER

    • Posted by Piyush Kishore 6 years, 8 months ago

    CBSE > Class 12 > Chemistry
    • 1 answers

    Pranav Sharma 6 years, 8 months ago

    2

    0Thank You

    ANSWER

    • Posted by Saurav Agrawal 6 years, 8 months ago

    CBSE > Class 12 > Chemistry
    • 0 answers
    ANSWER

    • Posted by Krutika Guru 6 years, 8 months ago

    CBSE > Class 12 > Chemistry
    • 1 answers

    Prakhar J 6 years, 8 months ago

    Mass of solute, urea = 10 gm....... Mass of solution , urea + water = 100 gm....... Mass of solvent, water = 90 gm

    2Thank You

    ANSWER

    • Posted by Vaibhav Singh 6 years, 8 months ago

    CBSE > Class 12 > Chemistry
    • 3 answers

    Harsh Mishra 6 years, 8 months ago

    A non-volatile solute does not produce vapor at the boiling point of the solution...... For ex. : A substance with higher vapor pressure vaporizes more readily than a substance with a lower vapor pressure......And In case of a volatile solute this has a high vapor pressure and hence produces vapor!!!! Hopes It Helps.....

    0Thank You

    Pragati Gola 6 years, 8 months ago

    Solution that don't evaporate

    1Thank You

    Prakhar J 6 years, 8 months ago

    A solution which donot converts into vapours......eg. Salt

    0Thank You

    ANSWER

    • Posted by Nikky Gupta 6 years, 8 months ago

    CBSE > Class 12 > Chemistry
    • 0 answers
    ANSWER

    • Posted by Shivani Patel 6 years, 8 months ago

    CBSE > Class 12 > Chemistry
    • 0 answers
    ANSWER

    • Posted by Sandy Crush 6 years, 8 months ago

    CBSE > Class 12 > Chemistry
    • 0 answers
    ANSWER

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