| 1 |
Which one of the following species is a nucleophile |
- A. CH3
- B. (CH3)2 C
- C. BF3
- D. OH-
|
| 2 |
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
|
| 3 |
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
|
| 4 |
Which substance is used to convert alcohol to alkyl halide. |
- A. SOCl2
- B. PCl3
- C. HCl +ZnCl2
- D. All of these
|
| 5 |
The reactivity of Grignard's regent is due to |
- A. Polarity of Mg-x bond
- B. Polarity of C-Mg bond
- C. Electro negativity of halogen atom
- D. Presence of Mg-atom
|
| 6 |
The general representation for Grignard reagent is. |
- A. RMgX
- B. ReMgX
- C. RXMg
- D. RMgX2
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| 7 |
Elimination biomolecular reactions involve. |
- A. First order kinetics
- B. Second order kinetics
- C. third order kinetics
- D. Zero order kinetics
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| 8 |
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
|
| 9 |
Which one of the following is not a nucleophile. |
- A. H2O
- B. H2S
- C. BF3
- D. NH3
|
| 10 |
S<sub>N </sub>2 mechanism involves |
- A. 1st order kinetics
- B. 2nd order kinetics
- C. 3rd kinetics
- D. zero order kinetics
|