Alkyl halides undergo elimination when heated with strong base. A concerted reaction in which both the groups to be eliminated, leave silumtaneously is E2 reaction. In another case ionization of alkyl halide takes place losing X^(-) and forms carbocation in the first stage followed by the loss of H^(+) . this is substituted alkene) and Hofmann (less substituted alkene) are formed depending on the condition of the reaction. Q. Which of the following is not correct regarding E2 reaction?

Alkyl halides undergo elimination when heated with strong base. A conc

1.	Alkyl halides undergo elimination when heated with strong base. A concerted reaction in which both the groups to be eliminated, leave silumtaneously is E2 reaction. In another case ionization of alkyl halide takes place losing X^(-) and forms carbocation in the first stage followed by the loss of H^(+) . this is substituted alkene) and Hofmann (less substituted alkene) are formed depending on the condition of the reaction. Q. Which of the following is not correct regarding E2 reaction?
Answer» KINETIC isotopic effect is observed. When the concentration of BASE is doubled, rate of elimination also doubles. Rearranged PRODUCT is formed. All of these Solution :In `E_(2)` REACTION no intermediate is formed. It is a single step bimoleuclar reaction in which both the LEAVING groups are lost simultanesouly.