A) indefinite
B) \[{{H}^{+}}+B{{r}^{-}}\] both at one time
C) \[{{H}^{+}}\]
D) \[B{{r}^{-}}\]
Correct Answer: C
Solution :
Key Idea: Alkene undergo electrophilic addition reaction. Electrophile is electron deficient species. During, electrophilic addition electrophile first adds across\[C=C\]or\[C\equiv C\]. (i) \[\overset{+}{\mathop{C}}\,{{H}_{2}}-\overset{-}{\mathop{C}}\,{{H}_{2}}+{{H}^{+}}+B{{r}^{-}}\] (ii)\[CH_{2}^{+}-CH_{2}^{-}+{{H}^{+}}\xrightarrow{{}}CH_{2}^{+}-C{{H}_{3}}\] (iii)\[CH_{2}^{+}-C{{H}_{3}}+B{{r}^{-}}\xrightarrow{{}}C{{H}_{2}}Br-C{{H}_{3}}\] \[\therefore \]Initial addition occur by\[{{H}^{+}}\].You need to login to perform this action.
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