Previous Year Papers

Download Solved Question Papers Free for Offline Practice and view Solutions Online.

Test Series

Take Zigya Full and Sectional Test Series. Time it out for real assessment and get your results instantly.

Test Yourself

Practice and master your preparation for a specific topic or chapter. Check you scores at the end of the test.

Alcohols, Phenols and Ethers

Short Answer Type

231. Write structures of the compounds whose IUPAC names are as follows:
1-Ethoxypropane

165 Views

232. Write structures of the compounds whose IUPAC names are as follows:
2-Ethoxy-3-methylpentane

151 Views

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

170 Views

234. Write structures of the compounds whose IUPAC names are as follows:
3-Cyclohexylpentan-3-ol

184 Views

235. Write structures of the compounds whose IUPAC names are as follows:
Cyclopent-3-en-1-ol

163 Views

236. Write structures of the compounds whose IUPAC names are as follows:
3-Chloro methyl pentan-1-ol

157 Views

Long Answer Type

237. (a) Draw the structures of all isomeric alcohols of molecular formula C₅H₁₂O and give their IUPAC names.
(b) Classify the isomers of alcohols in the above part of question as primary, secondary and tertiary alcohols.

1743 Views

Short Answer Type

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

The addition of borane followed by oxidation is known as the hydroboration-oxidation reaction.

In the first step, alkene reacts with diborane (B₂H₆) as boron hydride (BH₃) to form an alkyl borane. In the next step, the alkyl borane is oxidised by alkaline H₂O₂ to form an alcohol. The indirect hydration proceeds according to Anti Markovnikoff’s rule. For example,