1.

E represents an element belonging to boron family. E+2X_(2) to EX_(4) (X=F, Cl, Br, l)

Answer»

Stability of `EX_(4)` decreases down the `14^(th)` group
`PbL_(4)` does not exist
`GE` & `PB` forms `EX_(2)` as well.
All are correct

Solution :N//A


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