Q. No.What is the correct order of the carboxylic acids' strength?
I.
II.
III.
1.
I > II > III
2.
II > III > I
3.
III > II > I
4.
II > I > III
The correct statement regarding a carbonyl compound with a hydrogen atom on its alpha-carbon is:
| 1. | A carbonyl compound with a hydrogen atom on its alpha-carbon rapidly equilibrates with its corresponding enol and this process is known as aldehyde-ketone equilibration. |
| 2. | A carbonyl compound with a hydrogen atom on its alpha-carbon rapidly equilibrates with its corresponding enol and this process is known as carbonylation. |
| 3. | A carbonyl compound with a hydrogen atom on its alpha-carbon rapidly equilibrates with its corresponding enol and this process is known as keto-enol tautomerism. |
| 4. | A carbonyl compound with a hydrogen atom on its alpha-carbon never equilibrates with its corresponding enol. |
The product formed by the reaction of an aldehyde with a primary amine is:
1. Ketone
2. Carboxylic acid
3. Aromatic acid
4. Schiff base
The reaction of a carbonyl compound with one of the following reagents involves nucleophilic addition followed by the elimination of water. The reagents are:
| 1. | A Grignard reagent. |
| 2. | Hydrazine in the presence of a feebly acidic solution. |
| 3. | Hydrocyanic acid. |
| 4. | Sodium hydrogen sulphite. |
Treatment of cyclopentanone with methyl lithium generates:
1. Cyclopentanonyl cation
2. Cyclopentanonyl radical
3. Cyclopentanonyl biradical
4. Cyclopentanonyl anion
Compounds that can exhibit tautomerism, are:
1. l and ll
2. l and lll
3. ll and lll
4. l, ll and lll
An organic compound X having molecular formula C5H10O yields phenyl hydrazone and gives a negative response to the iodoform test and Tollen's test. It produces n-pentane on reduction. X could be:
2. 2-Pentanone
3. 3-Pentanone
4. n-Amyl alcohol
The compound among the following that will not be soluble in sodium hydrogen carbonate is:
| 1. | 2, 4, 6-Trinitrophenol | 2. | Benzoic acid |
| 3. | o-Nitrophenol | 4. | Benezenesulphonic acid |
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