| 1 |
Which one of the following species is not an electrophile. |
- A. HN3
- B. Br
- C. H+
- D. BF3
|
| 2 |
An alkyl halide may be converted to alcohol by |
- A. Addition
- B. Substitution
- C. Dehydrohalogenation
- D. Elimination
|
| 3 |
SN1 reaction usually occurs in |
- A. Primary alkyl halides
- B. Secondary alkyl halides
- C. Tertiary alkyl halides
- D. All of these
|
| 4 |
Which one of the following products will be formed in Wurtz reaction when sodium metal reacts with ethyl chloride in anhydrous ether. |
- A. Methane
- B. Ethane
- C. Propane
- D. Butane
|
| 5 |
For which mechanisms, the first step involved is the same |
- A. E<sub>1</sub>and E<sub>2</sub>
- B. E<sub>2</sub>and SN<sub>2</sub>
- C. E<sub>1</sub>and E<sub>2</sub>
- D. E<sub>1</sub>and SN<sub>1</sub>
|
| 6 |
Which one of the following molecules does not form alcohol when reacts with a Grignard reagent. |
- A. Formaldehyde
- B. Acetaldehyde
- C. Propanone
- D. CO2
|
| 7 |
Which one of the following will be required to form ethene from ethyl chloride. |
- A. Alcoholic KOH
- B. Aqueous KOH
- C. Alkaline KMnO4
- D. Bromine
|
| 8 |
Which compound is formed, when CH<sub>3</sub>OH reach with CH<sub>3</sub>- Mg -Br |
- A. Ethane
- B. Methane
- C. Ethanol
- D. Acetone
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| 9 |
Which one of the following alkanes will be formed by the hydrolysis of ethyl magnesium bromide |
- A. Methane
- B. Ethane
- C. Butane
- D. do not hydrolysed
|
| 10 |
SN2 reactions can be best carried out with |
- A. Primary alkyl halides
- B. Secondary alkyl halides
- C. Tertiary alkyl halides
- D. All the three
|