Alcohol phenol and ether part 1

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NCERT Class 12 Chemistry Chapter-wise Solutions

•  1 – The Solid State
• 2 – Solutions
• 3 – Electrochemistry
• 4 – Chemical Kinetics
• 5 – Surface Chemistry
• 6 – General Principles and Processes of Isolation of Elements
• 7 – The p-Block Elements
• 8 – The d-and f-Blocks Elements
• 9 – Coordination Compounds
• 10 – Haloalkanes and Haloarenes
• 11 – Alcohols, Phenols and Ethers
• 12 – Aldehydes, Ketones and Carboxylic Acids
• 13 – Amines
• 14 – Biomolecules
• 15 – Polymers
• 16 – Chemistry in Everyday Life

CHAPTER ELEVEN ALCOHOLS, PHENOLS AND ETHERS

• 11.1 Classification
• 11.2 Nomenclature
• 11.3 Structures of Functional Groups
• 11.4 Alcohols and Phenols
• 11.5 Some Commerically Important Alcohols
• 11.6 Ethers

NCERT Solutions class 12 Chemistry alcohol phenol and ether part 1

Part-1

1. Write IUPAC names of the following compounds:

(i)

(ii)

(iii)

(iv)

(v)

(vi)

(vii)

(viii)

(ix)

(x)

(xi)

(xii)

2. Write structures of the compounds whose IUPAC names are as follows:

(i) 2-Methylbutan-2-ol

(ii) 1-Phenylpropan-2-ol

(iii) 3,5-Dimethylhexane -1, 3, 5-triol

(iv) 2,3 – Diethylphenol

(v) 1 – Ethoxypropane

(vi) 2-Ethoxy-3-methylpentane

(vii) Cyclohexylmethanol

(viii) 3-Cyclohexylpentan-3-ol

(ix) Cyclopent-3-en-1-ol

(x) 3-Chloromethylpentan-1-ol.

3. (i) Draw the structures of all isomeric alcohols of molecular formula and give their IUPAC names.

(ii) Classify the isomers of alcohols in question 11.3 (i) as primary, secondary and tertiary alcohols.

4. Explain why propanol has higher boiling point than that of the hydrocarbon, butane?

5. Alcohols are comparatively more soluble in water than hydrocarbons of comparable molecular masses. Explain this fact.

6. What is meant by hydroboration-oxidation reaction? Illustrate it with an example.

7. Give the structures and IUPAC names of monohydric phenols of molecular formula, .

8. While separating a mixture of ortho and para nitrophenols by steam distillation, name the isomer which will be steam volatile. Give reason.

9. Give the equations of reactions for the preparation of phenol from cumene.

10. Write chemical reaction for the preparation of phenol from chlorobenzene.

11. Write the mechanism of hydration of ethene to yield ethanol.

12. You are given benzene, conc. and NaOH. Write the equations for the preparation of phenol using these reagents.

13. Show how will you synthesize:

(i) 1-phenylethanol from a suitable alkene.

(ii) cyclohexylmethanol using an alkyl halide by an SN2 reaction.

(iii) pentan-1-ol using a suitable alkyl halide?

14. Give two reactions that show the acidic nature of phenol. Compare acidity of phenol with that of ethanol.

15. Explain why is ortho nitrophenol more acidic than ortho methoxyphenol?

16. Explain how does the -OH group attached to a carbon of benzene ring activate it towards electrophilic substitution?

 covers both organic and inorganic chemistry. Please note that CBSE has reduced the syllabus for class 12 Chemistry. So, you must check the latest syllabus of CBSE while going through the NCERT solution of any chapter given in the class 12 NCERT book.