Trying to find the right answer to this..

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.

Aldehydes, Ketones and Carboxylic Acids

Short Answer Type

261. Complete each synthesis by giving missing starting material, reagent or products.

147 Views

262. Complete each synthesis by giving missing starting material, reagent or products.

163 Views

263. Complete each synthesis by giving missing starting material, reagent or products.

169 Views

264. Complete each synthesis by giving missing starting material, reagent or products.

158 Views

265. Give plausible explanation for each of the following:
Cyclohexanone forms cyanohydrin in good yield but 2, 2, 6-trimethyl cyclohexanone does not.

202 Views

266. Give plausible explanation for each of the following:

There are two –NH₂ groups in semicarbazide. However, only one is involved in the formation of semicarbazones.

310 Views

267. Give plausible explanation for each of the following:
During the preparation of esters from a carboxylic acid and an alcohol in the presence of an acid catalyst, the water or the ester should be removed as fast as it is formed.

173 Views

268. Explain the following:

p-Hydroxy benzaldehyde is more soluble in water than o-hydroxy benzaldehyde.

p-hydroxy benzaldehyde is more soluble in water than o-Hydroxy benzaldehyde, because p-Hydroxy benzaldehyde can form hydrogen bonds with water molecules resulting in enhanced solubility.

242 Views

269. Explain the following:
Benzaldehyde does not undergo aldol condensation whereas acetaldehyde does.

998 Views

270. Explain the following with one suitable example in each case:

Wolff-Kishner reduction.