Curtius and Hofmann Rearrangements

Q. 16. Identify the product in the reaction Acetylene with acidified potassium dichromate, what should be the product? 1)acetaldehyde 2)ethanol 3)ethanoic acid 4)methanol

Q. 40 Assertion: the decarboxylation of 3- Nitro butanoic acid is difficult than that of 3 -methyl butanoic acid. Reason: the carbanion formed is destabilized in 3-nitro butanoic acid.

Q. Total number of optically active isomer of 2, 3dibromopentane

Q. product obtained when cyclohexene is oxidised withacidicpotassium dichromatewil be 1.succinic acid 2.adipicacid 3.benzoic acid 4.terephthalic aci

Q. Which of the following reactions is appropriate for converting acetamide to methanamine?

1. Carbylamine reaction
2. Hoffmann hypobromamide reaction
3. Stephen's reaction
4. Gabriel-phthalimide synthesis

Q.

Acetamide changes into methylamine by

1. Hofmann bromamide reaction

2. Hofmann reaction

3. Friedel-Craft's reaction

4. Hinsberg reaction

Q. Which of the following does not decolorise acidified aqueous solution of KMnO4 1. SO2 2. FeCl3 3. H2O2 4. FeSO4