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Class 12 NCERT Solutions Chemistry
Class 12 NCERT Solutions Chemistry
Chapter - 7. Alcohol Phenol and Ether
Chapter - 7. Alcohol Phenol and Ether
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2. Write structures of the compounds whose IUPAC names are as follows:
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) 4-Chloro-3-ethylbutan-1-ol
3. (i) Draw the structures of all isomeric alcohols of molecular formula C₅H₁₂O
and give their IUPAC names.
(ii) Classify the isomers of alcohols in question 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, C₇H₈O.
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.
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