Which one is not a nucleophile ?

Related Mcqs:

1. Alkyl halides are considered to be very reactive compounds towards nucleophile because_________________?

   A. they have an electrophilic carbon
   B. they have an electrophilic carbon & a good leaving group
   C. they have an electrophilic carbon & a bad leaving group
   D. they have a nucleophilic carbon & a good leaving group

2. Strong Nucleophile in polar aprotic solvent?

   A. Flouride ion
   B. Bromide ion
   C. Chloride ion
   D. Iodide ion

   Submitted by: Safeullah Bullo

3. What is the order of kinetics in the SN1 mechanism ?

   A. Zero
   B. First
   C. Second
   D. Third

4. The ether used in Wurtz synthesis is__________________?

   A. acidic
   B. basic
   C. aqueous
   D. dry

5. Which one of the following alcohols will be formed when ethyl magnesium bromide reacts with acetone ?

   A. primary alcohol
   B. secondary alcohol
   C. tertiary alcohol
   D. dihydric alcohol

6. Which one of the following molecules does not form alcohol when reacts with Grignard reagent ?

   A. formaldehyde
   B. acetaldehyde
   C. propanone
   D. carbondioxide

7. Which alkyl halide out of the following may follow both SN1 and SN2 mechanism ?

   A. CH3-X
   B. (CH3)3 C-CH2 – X
   C. (CH3)2 CH – X
   D. (CH3)3 C – X

8. When two moles of ethyl chloride react with two moles of sodium in the presence of ether what will be formed ?

   A. 2 moles of ethane
   B. 1 mole of ethane
   C. 2 moles of butane
   D. 1 mole of butane

9. Ethylene epoxide treated with Grignards reagent followed by acid hydrolysis yield __________________?

   A. primary alcohol
   B. secondary alcohol
   C. tertiary alcohol
   D. dihydric alcohol

10. Alkyl halides undergo a type of reaction_________________?

    A. Nucleophilic substitution
    B. Nucleophilic addition
    C. Elimination
    D. both A & C