Ncert Solution Class 12 Chemistry Chapter 11 Questions And Answers, Notes & Numericals PDF

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Ncert Solution Class 12 Chemistry Chapter 11 Questions And Answers, Notes & Numericals PDF, Ncert Solution Class 12 Chemistry Chapter 11 PDF, Ncert Solution Class 12 Chemistry Chapter 11 Questions And Answers,


Ncert Solution Class 12 Chemistry Chapter 11


Class12th 
Chapter No11
ProvidingQuestions And Answers, Notes & Numericals PDF
Chapter NameAlcohols, Phenols and Ethers
BoardCBSE
Book NCERT
SubjectChemistry
Medium English
Study MaterialsFree VVI Study Materials are Available
Download PDF Ncert Solution Class 12 Chemistry Chapter 11 PDF

Chapter 11 | Alcohols, Phenols and Ethers


1. Alcohols are prepared by the hydration of alkenes in the presence of acid or by the hydroboration-oxidation reaction. 

2. Aldehydes form alcohols (primary and secondary) with Grignard reagent whereas ketones give tertiary alcohols. 

3. Methanol is manufactured from water gas.

4. Ethanol is manufactured by fermentation of carbohydrates. 

5. Phenols may be prepared from haloarenes, and aryl sulfonic acids by substitution reactions and also from diazonium salts. 

6. Phenols are manufactured from cumene.

7. Alcohols and phenols are acidic in nature. 

8. Phenolic -OH group is ortho and para directing in nature.

9. Salicylic acid is prepared commercially from phenol by Kolbe’s reaction. 

10. Reimer-Tiemann reaction is used to introduce-CHO the group at its acidic size d

o-position in phenol (formation of salicylaldehyde).

11. Electron-withdrawing groups in phenol increase strength and electron-releasing groups decrease it. 

12. Solubility of alcohols in water decreases with increased alkyl group. 

13. Dehydration of alcohol produces alkenes. 

14. 1, 2 and 3° alcohols are distinguished by Victor Meyer and Lucas tests. 

15. Ethers can be prepared by dehydration of alcohols and Williamson synthesis. 

16. Cleavage of the C-O bond in ethers takes place by hydrogen halides.

17. In electrophilic substitution, the alkoxy group activates the aromatic ring and directs the incoming group to ortho and para positions.


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