Aldehydes, Ketones and Carboxylic Acids

The product formed in Aldol condensation is

1. a beta-hydroxy aldehyde or a beta-hydroxy ketone
2. an alpha-hydroxy aldehyde or ketone
3. an alpha, beta unsaturated ester
4. a beta-hydroxy acid.

Which one of the following on treatment with 50% aqueous sodium hydroxide yields the corresponding alcohol and acid?

1. C6H5CHO
2. CH3CH2CH2CHO
3. CH3- O \|C-CH3
4. C6H5CH2CHO

Which of the following represents the correct order of the acidity in the given compounds ?

1. FCH2COOH > CH3COOH > BrCH2COOH > ClCH2COOH
2. BrCH2COOH > ClCH2COOH > FCH2COOH > CH3COOH
3. FCH2COOH > ClCH2COOH > BrCH2COOH > CH3COOH
4. CH3COOH > BrCH2COOH > ClCH2COOH > FCH2COOH

A carbonyl compound reacts with hydrogen cyanide to form cyanohydrin which on hydrolysis forms a racemic mixture of α-hydroxy acid. The carbonyl compound is

1. formaldehyde
2. acetaldehyde
3. acetone
4. diethyl ketone

Nucleophilic addition reaction will be most favoured in

1. CH3CHO
2. CH3-CH2-CH2- O \|C-CH3
3. (CH3)2C=O
4. CH3CH2CHO

Self condensation of two moles of ethyl acetate in presence of sodium ethoxide yields

1. ethyl propionate
2. ethyl butyrate
3. acetoacetic ester
4. methyl acetoacetate

In a set of reactions acetic acid yielded a product D. CH3COOH SOCl2 A [anhy. AlCl3]benzene B HCN C HOH D The structure of D would be

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

When m-chlorobenzaldehyde is treated with 50% KOH solution, the product(s) obtained is (are)

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

A and B in the following reactions are : [figure]

1. [figure]
2. [figure]
3. A = RR'CHCN, B = NaOH
4. [figure]

[figure] In the above reaction product P is

1. [figure]
2. [figure]
3. [figure]
4. C6H5- O \|C-C6H5