Hydrocarbons Question 358
Question: Which reactions are most common in alkenes [Pb. CET 1989]
Options:
A) Electrophilic substitution reactions
B) Nucleophilic substitution reactions
C) Electrophilic addition reactions
D) Nucleophilic addition reactions
Show Answer
Answer:
Correct Answer: C
Solution:
Electrophillic addition reactions are shown by alkenes or alkynes in these reactions attacking species is electrophiles $ CH_3-CH=CH_2+{H^{+}}\xrightarrow{Slow}\underset{2^{o}\text{ carbonium ion}}{\mathop{CH_3-\overset{+}{\mathop{C}}H-CH_3}} $
$ CH_3-\overset{+}{\mathop{C}}H-CH_3+B{r^{-}}\xrightarrow{Fast}\underset{\text{2-Bromo propane}}{\mathop{CH_3-\underset{Br}{\mathop{\underset{|}{\mathop{C}}H}}-CH_3}} $
BETA
