Mechanism Organic reaction quiz

Q.1 Covalent bonds can be break by
      A.homolytic fission
      B.heterolytic fission
      C.homolytic fusion

      D.both A and B

Answer:-D
Explanation:-

Bond cleavage is the splitting of a chemical bond.

There are two types of bond cleavage: homolytic and heterolytic.

In homolytic cleavage, the two electrons in the bond are divided equally between the products.





In heterolytic cleavage, one atom gets both of the shared electrons.

Q.2 Formation of radicals which attack reactants molecules generate more free radicals. This step is a       A.initiation step
       B.propagation step
       C.termination step
       D.elimination step

Answer:-B

Q.3 An acceptor of pair of electron is termed as
      A.nucleophile
      B.electrophile
      C.carbocation
      D.anion

Answer:-B

Q.4 In a free radical reaction, free radicals are formed at
      A.initiation step
      B.propagation step
      C.termination step

      D.both A and B

Answer:-D