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

Related Mcqs:

1. 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

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

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

3. Alkyl halides undergo a type of reaction_________________?

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

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

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

5. 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

6. Which one is not a nucleophile ?

   A. C2H5O-
   B. SCN-
   C. NH3
   D. H3C+

7. Strong Nucleophile in polar aprotic solvent?

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

   Submitted by: Safeullah Bullo

8. Halides in which halogen atoms act as a bridge between two atoms of the other element are called___________________?

   A. Covalent halides
   B. Electronegative halides
   C. Polymeric halides
   D. Polymeric hydrides

9. When alcohol reacts with phosphorous halides it geive____________________?

   A. alkyl halides
   B. alkyl amine
   C. alkanes
   D. alkynes

10. 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