Overall transformation : Ar-H to Ar-R
Named after Friedel and Crafts who discovered the reaction in 1877.
Reagent : normally the alkyl halide (e.g. R-Br or R-Cl) with aluminum trichloride, AlCl3, a Lewis acid catalyst.
The AlCl3 enhances the electrophilicity of the alkyl halide by complexing with the halide.
Electrophilic species : the carbocation (i.e. R +) formed by the "removal" of the halide by the Lewis acid catalyst
The reactive electrophile, the carbocation is prone to rearrangement to a more stable carbocation which will then undergo the alkylation reaction.

Friedel-Crafts reactions are limited to arenes as or more reactive than mono-halobenzenes
Other Lewis acids such as BF3, FeCl3 or ZnCl2 can also be used
Other sources of carbocations can also be used:
from loss of water from alcohols treated with acid such as H2SO4
from the protonation of alkenes by acid such as H2SO4
Alkylation products can also be obtained by the reduction of Friedel-Crafts acylation products
It could eliminated wetlands and it could effect people by destroying their homes, sinking the islands.
<span>The answer is C, nine of thirteen states. It took 10 months for the initial nine states to affirm the Constitution. The primary state to confirm was Delaware, on December 7, 1787, by a consistent vote, 30 - 0. The highlighted report is a supported approval of the government Constitution by the Delaware tradition.</span>
Answer: Mark me brainliest!!
the power to levy taxes
Explanation:
Concurrent powers refers to powers which are shared by both the federal government and state governments. This includes the power to tax.
