| 1 |
Which one of the following species is not an electrophile. |
- A. HN3
- B. Br
- C. H+
- D. BF3
|
| 2 |
SN2 reactions can be best carried out with |
- A. Primary alkyl halides
- B. Secondary alkyl halides
- C. Tertiary alkyl halides
- D. All the three
|
| 3 |
In primary alkyl halides, the halogen atom is attached to a carbon which is further attached to how many carbon atoms |
- A. Two
- B. Three
- C. One
- D. Four
|
| 4 |
Elimination Bimolecular reactions involve |
- A. Second order kinetics
- B. First order kinetics
- C. Third order kinetics
- D. Zero order kinetics
|
| 5 |
Which one of the following species is a nucleophile |
- A. CH3
- B. (CH3)2 C
- C. BF3
- D. OH-
|
| 6 |
The general representation for Grignard reagent is. |
- A. RMgX
- B. ReMgX
- C. RXMg
- D. RMgX2
|
| 7 |
Which alkyl halide does not form Grignard's reagent. |
- A. CH3-Br
- B. CH3-Cl
- C. CH3- F
- D. CH3-I
|
| 8 |
For which mechanisms, the first step involved is the same. |
- A. E2 and E2
- B. E2 and SN2
- C. SN1 and E2
- D. E1 and SN1
|
| 9 |
Which one of the following molecules does not form alcohol when reacts with a Grignard reagent. |
- A. Formaldehyde
- B. Acetaldehyde
- C. Propanone
- D. CO2
|
| 10 |
In which process, alkyl halide is not produced. |
- A. Reaction of alcohol with halogen acid
- B. Reaction of Grignard reagent with water
- C. Reaction of alcohol with phosphorous pentachloride
- D. Action of alkene on halogen acid
|
