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The tendency of X in BX(3)(X=F,Cl,Ome, N...

The tendency of X in `BX_(3)(X=F,Cl,Ome, Nme)` to form a `pi` bond with boron follows the order

A

`BCI_3ltBF_3ltB(OMe)_3ltB(NMe_2)_3`

B

`BF_3ltBCI_3ltB(OMe)_3ltB(NMe_2)_3`

C

`BCI_3ltB(NMe_2)_3ltB(OMe)_3ltBF_3`

D

`BCI_3ltBF_3ltB(NMe_2)_3ltB(OMe)_3`

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