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

Related Mcqs:

1. Which alkyl halide has the highest reactivity for a particular alkyl group ?

   A. R-F
   B. R-C
   C. R-Br
   D. R-I

2. Replacement of hydrogen of benzene by alkyl group in the presence of alkyl halide & aluminum chloride is known as__________________?

   A. Dows process
   B. Friedel & Craft acylation
   C. Friedel & Craft alkylation
   D. Clemmenson reduction

3. Which of the following haloalkane is hydrolysed by SN1 mechanism?

   A. CH3Br
   B. CH3CH2Br
   C. CH3CH2CH2Br
   D. (CH3)3CBr

   Submitted by: Muhammad Ali Kunbhar

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

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

5. Which of the following solvents would best facilitate an SN2 substitution reaction?

   A. Water
   B. Hexane
   C. Dimethylflormamide
   D. Ethanol

   Submitted by: Muhammad Ali Kunbhar

6. SN2 reaction can be best carried out with__________________?

   A. primary alkyl halide
   B. secondary alkyl halide
   C. tertiary alkyl halide
   D. all

7. 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

8. The best method of preparation of alkyl halides is a reaction of alcohol with__________________?

   A. Zn / HCI
   B. SOCl2 / Pyridine
   C. PCI3
   D. PCI5

9. 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

10. Alkyl halides undergo a type of reaction_________________?

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