Download CBSE Class 11 Chemistry Hydrocarbon Notes Set B in PDF format. All Revision notes for Class 11 Chemistry have been designed as per the latest syllabus and updated chapters given in your textbook for Chemistry in Class 11. Our teachers have designed these concept notes for the benefit of Class 11 students. You should use these chapter wise notes for revision on daily basis. These study notes can also be used for learning each chapter and its important and difficult topics or revision just before your exams to help you get better scores in upcoming examinations, You can also use Printable notes for Class 11 Chemistry for faster revision of difficult topics and get higher rank. After reading these notes also refer to MCQ questions for Class 11 Chemistry given on studiestoday
Revision Notes for Class 11 Chemistry Chapter 13 Hydrocarbons
Class 11 Chemistry students should refer to the following concepts and notes for Chapter 13 Hydrocarbons in Class 11. These exam notes for Class 11 Chemistry will be very useful for upcoming class tests and examinations and help you to score good marks
Chapter 13 Hydrocarbons Notes Class 11 Chemistry
Class XI
Chemistry
Chapter 13: Hydrocarbons
TOP Concepts:
3. Kolbe’s electrolytic method: Alkali metal salts of carboxylic acids undergo decarboxylation on electrolysis of their aqueous solutions and form hydrocarbons having twice the number of carbon atoms present in the alkyl group of the acid.
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4. Physical properties of alkanes:
a. Physical state: C1 to C4 are gases, C5 to C17 are liquids and those containing 18 carbon atoms or more are solids at 298 K. Reason: Hydrocarbons are non- polar because of the covalent nature of C-C and C-H bonds. Thus, they have weak van der Waals forces.
b. Boiling points: Alkanes have low boiling points because they have weak van der Waals forces. Higher alkanes with higher molecular masses have high boiling points than lower alkanes with low molecular masses. This is because magnitude of van der Waals forces increases with increase in molecular mass or increase in surface area. Boiling points of branched chain alkanes are lower than the corresponding straight chain alkanes. This is because with branching the molecules become more compact and hence the surface area decreases.
c. Melting points: The alkanes with even number of carbon atoms have higher melting points as compared to the immediately next lower alkane with odd number of carbon atoms. This is because alkanes with even number of carbon atoms have symmetrical structure and hence it results in closer packing in the crystal structure.
d. Solubility: Alkanes are soluble in non- polar solvents and are insoluble in polar solvents since alkanes are non- polar molecules.
5. Chemical properties of alkanes:
Please click the link below to download pdf file for CBSE Class 11 Chemistry Hydrocarbon Notes Set B.
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CBSE Class 11 Chemistry Chapter 13 Hydrocarbons Notes
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Notes for Chemistry CBSE Class 11 Chapter 13 Hydrocarbons
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Chapter 13 Hydrocarbons Notes for Chemistry CBSE Class 11
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Chapter 13 Hydrocarbons CBSE Class 11 Chemistry Notes
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Notes for CBSE Chemistry Class 11 Chapter 13 Hydrocarbons
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