Benzaldehyde cannot be prepared by:
1. | |
2. | |
3. | |
4. |
The Clemmensen reduction of a ketone is carried out in the presence of:
1. - with
2.
3. and as a catalyst
4. Glycol with
The hydrogenation of benzoyl chloride in the presence of Pd and BaSO4 gives:
1. Benzyl alcohol
2. Benzaldehyde
3. Benzoic acid
4. Phenol
Alkaline hydrolysis of 'A' gives a compound (B) . 'B' on heating with NaOH and produces a yellow precipitate of .The compound (B) is:
1. | 2. | ||
3. | 4. |
HVZ reaction cannot be given by:
1. | Butyric acid | 2. | Acetic acid |
3. | Benzoic acid | 4. | Phenylacetic acid |
What is the major product of the reaction between cyclohexanecarbaldehyde and Tollens' reagent?
1. | 2. | ||
3. | 4. | None of these |
The compound that does not give an iodoform test is:
1. 3-Pentanone
2. 2-Pentanone
3. Ethanol
4. Ethanal
What is the most suitable reagent for the below mentioned conversion?
\(\mathrm{CH_{3} — CH = CH — CH_{2} — \overset{\Large{O} \\~ ||}{C}—CH_{3} \rightarrow}\)
\(\mathrm{CH_{3} — CH = CH — CH_{2} — \overset{\Large{O} \\~ ||}{C}—OH}\)
1. Tollens' reagent
2. Benzoyl peroxide
3. \(\mathrm I_{2}\) and NaOH solution
4. Sn and NaOH solution
The conversions can be used for Clemmensen reduction are:
a. Benzaldehyde into benzyl alcohol.
b. Cyclohexanone into cyclohexane.
c. Benzoyl chloride into benzaldehyde.
d. Benzophenone into diphenyl methane.
1. | a and b | 2. | b and c |
3. | c and d | 4. | b and d |
The compound on hydrolysis of 50% aqueous sodium hydroxide that produces the corresponding alcohol and acid is:
1.
2.
3.
4.