Hydrocarbons Question 256
Question: Which of the following types of reaction occur when a reactant has got a double bond-
(i) Addition (ii) Photolysis (iii) Nucleophilic substitution (iv) Polymerization
Options:
A) (i) and (iv)
B) (i) and (ii)
C) (i), (ii) and (iv)
D) (i),(ii),(iii) and (iv)
Show Answer
Answer:
Correct Answer: A
Solution:
[a] Addition reaction occurs on a double bond.
The compound containing double bonds are also undergo polymerisation.
So, the correct option are both (i) and (iv) e.g.
$ CH_2=CH_2+HOCI\xrightarrow{{}}\underset{( additionreaction )}{\mathop{CH_2OH-CH_2Cl}} $
$ nCH_2=CH_2\xrightarrow{polymerisation}\underset{Polyethene}{\mathop{-{{[CH_2-CH_2-]} _{n}}}} $