1.

Which of the following can't be used in Friedel Carft's reaction

Answer»

`FeCl_(3)`
`FeBr_(2)`
`AlCl_(3)`
NaCl

Solution :All cations are expected to act as Lewis acid since they are ELECTRON deficient in NATURE. However cation such as `Na^(+), K^(+)` etc. (Inert GAS configuration) have a very little tendency to accept electrons. Therefore they do no act as lewis acids in Friedel Craft's reaction.


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