Aldehydes, Ketones and Carboxylic Acids · Question 27

"P" is an optically active compound with molecular formula C6H12O. When "P" is treated with 2,4-dinitrophenylhydrazine, it gives a positive test. However, in presence of Tollens' reagent, "P" gives a negative test. Predict the structure of "P".

1. [figure]
2. [figure]
3. [figure]
4. [figure]

Aldol condensation is a popular and classical method to prepare , -unsaturated carbonyl compounds. This reaction can be both intermolecular and intramolecular. Predict which one of the following is not a product of intramolecular aldol condensation?

1. [figure]
2. [figure]
3. [figure]
4. [figure]

Which among the following compounds give yellow solid when reacted with NaOI/NaOH? Choose the correct answer from the options given below :

1. (A) and (C) Only
2. (C) and (D) Only
3. (B), (C) and (E) Only
4. (A), (C) and (D) Only

Number of molecules from below which cannot give iodoform reaction is : Ethanol, Isopropyl alcohol, Bromoacetone, 2-Butanol, 2-Butanone, Butanal, 2-Pentanone, 3-Pentanone, Pentanal and 3-Pentanol.

1. 4
2. 3
3. 5
4. 2

The major product (P) in the following reaction is : Ph- O \|C- O \|C-H [ ]KOH Major ProductP

1. Ph- O \|C-COO K
2. Ph- OH |CH-CH2OH
3. Ph- OH |CH-COO K
4. Ph- O \|C-CH2OH

Given below are two statements: In the light of the above statements, choose the most appropriate answer from the options given below :

1. Statement I is correct but Statement II is incorrect
2. Both Statement I and Statement II are correct
3. Both Statement I and Statement II are incorrect
4. Statement I is incorrect but Statement II is correct

Consider the following molecules: [figure] The correct order of rate of hydrolysis is :

1. p > q > r > s
2. r > q > p > s
3. p > r > q > s
4. q > p > r > s

Consider the following reactions. From these reactions which reaction will give carboxylic acid as a major product? Choose the correct answer from the options given below:

1. A, B and E only
2. A and D only
3. B, C and E only
4. B and E only

The product (P) formed in the following reaction is : [figure]

1. [figure]
2. [figure]
3. [figure]
4. [figure]

[figure] 0.1 mole of compound 'S' will weigh g. (Given molar mass in g mol-1 C : 12, H : 1, O : 16)