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    • Posted by Anshika Tiwari 6 years, 9 months ago

    CBSE > Class 12 > Chemistry
    • 1 answers

    Satyam Siwam 6 years, 9 months ago

    On the basis of arrangement of constituent particle these are two types of solid::::(1)crystalline (2)amorphous 1.crystalline-(a)these have definite and regular arrangement of constitient particles in space. (b)these are true solids. (C)they have sharp melting points. (D)these are anisotropic because their physical properties are different in different directions. (E)they undergo regular and clean cleavage (F)they have definite geometrical shape 2.amorphus A.they have an irregular shape B.they have short range order C .they are called super cooled liquids D.they melt over certain range of temperature E.these are isotropic. F. They undergo irregular cleavage.

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    • Posted by Sanchit Bajaj 6 years, 9 months ago

    CBSE > Class 12 > Chemistry
    • 0 answers
    ANSWER

    • Posted by Vishal Gautam 6 years, 9 months ago

    CBSE > Class 12 > Chemistry
    • 0 answers
    ANSWER

    • Posted by Saumya . 6 years, 9 months ago

    CBSE > Class 12 > Chemistry
    • 1 answers

    Yogita Ingle 6 years, 9 months ago

    CO2 has simple linear structure it exists as discrete molecule but SiO2 has giant molecular structure it exists as polymeric structure that’s why CO2 exist as gas SiO2 exist as solid .

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    • Posted by Sehaz Chugh 6 years, 9 months ago

    CBSE > Class 12 > Chemistry
    • 0 answers
    ANSWER

    • Posted by Muskan Agrawal 6 years, 9 months ago

    CBSE > Class 12 > Chemistry
    • 3 answers

    Muskan Agrawal 6 years, 9 months ago

    No...i mean fourth carbon is attached from outside to triangle i.e, cycloproane by doule bond ...then what will be its name?.....note that there is no double bond inside the triangle.

    0Thank You

    Anand Raj 6 years, 9 months ago

    Cyclopropane

    1Thank You

    Anjali Yadav 6 years, 9 months ago

    It is Cyclopropene

    0Thank You

    ANSWER

    • Posted by Riddhi Paul 6 years, 9 months ago

    CBSE > Class 12 > Chemistry
    • 2 answers

    Piyush Dhaiya 6 years, 9 months ago

    Chemistry ka paper ho Gaya, ab kya pad re ho?

    2Thank You

    Yogita Ingle 6 years, 9 months ago

    Compounds having frenkel defect conduct electricity to a small extent. When electric field is applied, an ion moves from its lattice site to occupy a hole, it creates a new hole. In this way, a hole moves from one end to the other. Thus, it conducts electricity across the crystal. Due to the presence of holes, stability (or the lattice energy) of the crystal decreases.

    1Thank You

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    • Posted by P S 6 years, 9 months ago

    CBSE > Class 12 > Chemistry
    • 3 answers

    Anand Raj 6 years, 9 months ago

    Can't Say Anything about it

    1Thank You

    Pratham Sharma 6 years, 9 months ago

    No

    1Thank You

    Astha Dewangan 6 years, 9 months ago

    No solid state is removed from session 2019-20

    1Thank You

    ANSWER

    • Posted by Ankita Poonia 6 years, 9 months ago

    CBSE > Class 12 > Chemistry
    • 1 answers

    Yogita Ingle 6 years, 9 months ago

    Acetic acid is carboxylic acid and Carboxylic acids are acidic due to resonance stabilization of carboxylate anion and in phenols, acidic character is present due to resonance stabilization of phenoxide anion. Carboxylic acid are more acidic than phenols because the negative charge in carboxylate anion is more spread out as compared to the phenoxide ion as there are two electronegative O-atoms in carboxylate anion in comparison to one in phenoxide ion. In the resosnce structures of carboxylate anion, the negative charge is present on the O-atoms while in resonance of phenoxide ion negative charge is also present on electropositive carbon atom, which leads to less stability of phenoxide ion than carboxylate anion.

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    • Posted by Saumya T 6 years, 9 months ago

    CBSE > Class 12 > Chemistry
    • 0 answers
    ANSWER

    • Posted by Satpreet Kaur 6 years, 9 months ago

    CBSE > Class 12 > Chemistry
    • 0 answers
    ANSWER

    • Posted by Sachin Verma 6 years, 9 months ago

    CBSE > Class 12 > Chemistry
    • 2 answers

    Anjali Yadav 6 years, 9 months ago

    The eating of metal in the presence of air and moisture is called Corrosion

    0Thank You

    Nikhil Thomas 6 years, 9 months ago

    It

    0Thank You

    ANSWER

    • Posted by Nikhil Kumar 6 years, 9 months ago

    CBSE > Class 12 > Chemistry
    • 0 answers
    ANSWER

    • Posted by Deep Nagra 6 years, 9 months ago

    CBSE > Class 12 > Chemistry
    • 1 answers

    Aditya Raj 5 years, 8 months ago

    Take patience till first week of april.

    3Thank You

    ANSWER

    • Posted by Snehlata Shrivastava 6 years, 9 months ago

    CBSE > Class 12 > Chemistry
    • 1 answers

    Himanshu Gautam 6 years, 9 months ago

    Suppose a mixture contains 2 completely miseble volatile components A and B having mole fraction xA and xB. Therefore partial pressure of each component is pA=xA p°A eq1 pB=xB p°B eq2 Therefore P=pA+pB P=xA p°A+xB p°B eq3 We know xA+xB=1 xA=1-xB Putting value of xA in eq3 P=(1-xB)p°A+xB p°B P=p°A-xB p°A+xB p°B P-p°A=xB(p°B-p°A) xB=(P-p°A)÷(p°B-p°A) eq4 xB= mole fraction of solute xA= mole fraction of solvent P= vapour pressure of solution p°A= vapour pressure of pure solvent p°B= vapour pressure of pure solute We know xA=1-xB xA=1-(eq4) We get xA=(p°B-P)÷(p°B-p°A) Definition- In a solution, the vapour pressure of a component at a given temperature is equal to the mole fraction of that component in the solution multiplied by the vapour pressure of that component in the pure state.

    2Thank You

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    • Posted by Sneha Sharma 6 years, 9 months ago

    CBSE > Class 12 > Chemistry
    • 0 answers
    ANSWER

    • Posted by Bhavesh Saraswat 6 years, 9 months ago

    CBSE > Class 12 > Chemistry
    • 1 answers

    Sneha Sharma 6 years, 9 months ago

    5

    1Thank You

    ANSWER

    • Posted by Lalita Babal 6 years, 9 months ago

    CBSE > Class 12 > Chemistry
    • 0 answers
    ANSWER

    • Posted by Harshit Tiwari 6 years, 9 months ago

    CBSE > Class 12 > Chemistry
    • 1 answers

    Vishal Pathak 6 years, 9 months ago

    No idea frnd!!

    0Thank You

    ANSWER

    • Posted by Deepanshu Jangra 6 years, 9 months ago

    CBSE > Class 12 > Chemistry
    • 1 answers

    Gaurav Seth 6 years, 9 months ago

    Chlorine can be prepared by reacting HCl with MnO2. The reaction is represented by this equation.

    MnO2(s) + 4HCl(aq) → Cl2(g) + MnCl2(aq) + 2H2O(l)

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    • Posted by Chesta Gupta 6 years, 9 months ago

    CBSE > Class 12 > Chemistry
    • 1 answers

    Priyanshu Singh 6 years, 9 months ago

    Take modern abc is always helpful to you

    1Thank You

    ANSWER

    • Posted by Akash Singh 6 years, 9 months ago

    CBSE > Class 12 > Chemistry
    • 0 answers
    ANSWER

    • Posted by Komal Sehwag 6 years, 9 months ago

    CBSE > Class 12 > Chemistry
    • 1 answers

    Robin Singh 6 years, 9 months ago

    It is the blocking of path of nucleophile/electrophiles due to presence of bulky grps of carbon . Eg- tertiary carbon

    1Thank You

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    • Posted by Priyanka Dey 6 years, 9 months ago

    CBSE > Class 12 > Chemistry
    • 0 answers
    ANSWER

    • Posted by Shakshi Rana 6 years, 9 months ago

    CBSE > Class 12 > Chemistry
    • 1 answers

    Ayush Verma 6 years, 9 months ago

    1st is conferm and another half chapter which i don't know.

    0Thank You

    ANSWER

    • Posted by Vanshika Tyagi 6 years, 9 months ago

    CBSE > Class 12 > Chemistry
    • 0 answers
    ANSWER

    • Posted by Vanshika Tyagi 6 years, 9 months ago

    CBSE > Class 12 > Chemistry
    • 0 answers
    ANSWER

    • Posted by Xyz Abc 6 years, 9 months ago

    CBSE > Class 12 > Chemistry
    • 1 answers

    Christin Mathew 6 years, 9 months ago

    Expected to be released soon

    2Thank You

    ANSWER

    • Posted by Priya Pahal 6 years, 9 months ago

    CBSE > Class 12 > Chemistry
    • 4 answers

    Astha Dewangan 6 years, 9 months ago

    Yes

    3Thank You

    Christin Mathew 6 years, 9 months ago

    Because it was included in the class 11 session 2018 - 2019

    1Thank You

    Ayush Verma 6 years, 9 months ago

    How do u know about it christin?? Plzz reply

    1Thank You

    Christin Mathew 6 years, 9 months ago

    Yes

    3Thank You

    ANSWER

    • Posted by Kanu Pandey 6 years, 9 months ago

    CBSE > Class 12 > Chemistry
    • 1 answers

    Yogita Ingle 6 years, 9 months ago

    Solids have strong intermolecular forces of attraction. The constituent particles of solids cannot move from their positions they can only vibrate from their mean positive. That is why do solids have a definite volume.

    1Thank You

    ANSWER

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