| 1 |
Which of the following has highest boiling point |
- A. Methanal
- B. Ethanal
- C. Propanal
- D. 2-hexanone
|
| 2 |
Aldehydes and ketones can be defected by |
- A. 2, 4 DNPH test
- B. Tollen's test
- C. Sodium Nitro prusside test
- D. Benedicts solution test
|
| 3 |
Which of the following reagents will reacts with both aldehydes and ketones. |
- A. Grignard reagent
- B. Tollens's reagent
- C. Fehling's reagent
- D. Benedict 's reagent
|
| 4 |
Air of the following tests are used to identify aldehydes except. |
- A. Tollen's test
- B. Fehling test
- C. Baeyer's test
- D. Benedict test
|
| 5 |
Which one of the following compounds is not derivative of NH3. |
- A. Aniline
- B. Hydrazine
- C. Phenyl hydrazine
- D. Picric acid
|
| 6 |
Formation of cyanohydrin from an aldehyde in an example of. |
- A. Nucleophilic substitution
- B. Nucleophilic addition
- C. Electrophilic addition
- D. Electrophilic substitution
|
| 7 |
Aldehyde react with hydroxyl amine in acidic solution to give |
- A. An oxime
- B. Aldol
- C. Polymer
- D. Acetic acid
|
| 8 |
when aldehydes react with Tollen's reagent. |
- A. A ketone is produced
- B. An alcohol is produced
- C. Ag ions are produced
- D. Ag ions are reduced
|
| 9 |
Acetaldehyde can be prepared by the oxidation of. |
- A. Acetic acid
- B. Ethanol
- C. 1- Proponal
- D. Ethanonic acid
|
| 10 |
Paraldehyde is polymer of. |
- A. HCHO
- B. CH3CHO
- C. CH3COCH3
- D. CH3CH2-CH2OH
|