CBSE Class 12 Chemistry

  • CBSE Class 12 Chemistry Syllabus 2020 2021

      CBSE Class 12 Chemistry Syllabus 2020 2021. Students must always refer to the latest syllabus issued by CBSE before starting studies. Download the latest syllabus for 2020 2021 released by CBSE to plan your studies as per the latest syllabus and guidelines issued by CBSE NCERT. The syllabus,...

  • CBSE Class 12 Chemistry Surface Chemistry Board Exam Notes

    KEY POINTS   •  The branch of chemistry which deals with the study of surface phenomena . •  Adsorption:The phenomenon of attracting and retaining the molecules of a substance at the surface of the solid or a liquid resulting into higher concentration of the molecules on the surface than in the...

  • CBSE Class 12 Chemistry Solutions Board Exam Notes

    SOLUTION is the homogeneous mixture of two or more than two components. Most of the solutions are binary i.e. consists of two components out of which that is present in the largest quantity is called solvent & one which is present in smaller quantity called solute.   EXPRESSING CONCENTRATIONS...

  • CBSE Class 12 Chemistry Polymers Board Exam Notes

    KEY POINTS Polymer: It is a very large molecule having high molecular mass (103 ‐ 107 u). They are formed by joining of repeating structural units on large scale. Copolymer is derived from more than one species of monomer. Copolymer is fromed by copolymerization of two monomer species.  ...

  • CBSE Class 12 Chemistry P Block Elements Board Exam Notes

    The general valence shell electronic configuration of p‐block elements ‐ ns2 np1–6   Group‐16thELEMENTS KEY POINTS :‐ 1. O, S, Se, Te and Po are present in G‐16th Their general electronic conf. of last shell is ns2,np4. 2. Atomic and ionic radii increases down the group while ionization enthalpy...

CBSE Class 12 Chemistry Syllabus 2020 2021

 
CBSE Class 12 Chemistry Syllabus 2020 2021. Students must always refer to the latest syllabus issued by CBSE before starting studies. Download the latest syllabus for 2020 2021 released by CBSE to plan your studies as per the latest syllabus and guidelines issued by CBSE NCERT. The syllabus, weightage of chapters, blue print of question papers and the design of question papers is issued every year for the benefit of students. Access and download syllabus for all subjects here.
 
 
Unit I: Solid State 

 


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CBSE Class 12 Chemistry Surface Chemistry Board Exam Notes

KEY POINTS
 
•  The branch of chemistry which deals with the study of surface phenomena .
•  Adsorption:The phenomenon of attracting and retaining the molecules of a substance at the surface of the solid or a liquid resulting into higher concentration of the molecules on the surface than in the bulk.
•  Adsorbent: The substance where adsorption occurs.

 


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CBSE Class 12 Chemistry Solutions Board Exam Notes

SOLUTION is the homogeneous mixture of two or more than two components. Most of the solutions are binary i.e. consists of two components out of which that is present in the largest quantity is called solvent & one which is present in smaller quantity called solute.
 
EXPRESSING CONCENTRATIONS OF SOLUTIONS

¶ Mass percentage: Mass of solute per 100g of solution Mass % = (mass of solute / total mass of solution) X 100

 


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CBSE Class 12 Chemistry Polymers Board Exam Notes

KEY POINTS

Polymer:

It is a very large molecule having high molecular mass (103 ‐ 107 u). They are formed by joining of repeating structural units on large scale.
Copolymer is derived from more than one species of monomer. Copolymer is fromed by copolymerization of two monomer species.
 
Classification of polymers:
Based on Source
 

 


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CBSE Class 12 Chemistry P Block Elements Board Exam Notes

The general valence shell electronic configuration of p‐block elements ‐ ns2 np1–6
 
Group‐16thELEMENTS

KEY POINTS :‐

1. O, S, Se, Te and Po are present in G‐16th Their general electronic conf. of last shell is ns2,np4.

 


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CBSE Class 12 Chemistry Haloalkanes And Haloarenes Board Exam Notes

The placement of hydrogen atom(s) in a hydrocarbon, aliphatic or aromatic, by halogen atom(s) results in the formation of alkylhalide (haloalkane) and arylhalide (haloarene), respectively
CBSE Class 12 Chemistry Haloalkanes and Haloarenes Board Exam Notes
 
 
(A) IMPORTANT NAME REACTIONS

 


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CBSE Class 12 Chemistry General Principles And Process Of Isolation Of Elements Board Exam Notes

CBSE Class 12 Chemistry General Principles and Process of Isoloation of Elements Board Exam Notes
 
 
 
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CBSE Class 12 Chemistry Electrochemistry Board Exam Notes

KEY POINTS

Resistance – obstacle to the flow of electricity.
 
Resistivity – resistance offered by the conductor when it is of unit length and has unit area of cross section.
 

 


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CBSE Class 12 Chemistry D And F Block Elements Board Exam Notes

 d‐block consists of elements belonging to group 3‐12.
 The general electronic configuration of these elements in (n‐1) d1–10 ns1–2. They contain unpaired d - electron either in elementary or most commonly occurring oxidation state.
 Transition elements exhibits metallic character, high densities, high melting and boiling point due to strong interatomic interaction between partially filled d - orbits.'

 


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CBSE Class 12 Chemistry Coordination Compounds Board Exam Notes

Difference between coordination compound and double salt:

CBSE Class 12 Chemistry Coordination Compounds Board Exam Notes


 


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Latest NCERT & CBSE News

Read the latest news and announcements from NCERT and CBSE below. Important updates relating to your studies which will help you to keep yourself updated with latest happenings in school level education. Keep yourself updated with all latest news and also read articles from teachers which will help you to improve your studies, increase motivation level and promote faster learning

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