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# Which of the following statement is incorrect ?

$\begin {array} {1 1} (A)\;\text{Boron does not form ionic compounds with the formation of$B^{3+} $ions} \\ (B)\;\text{Borane exhibits inert pair effect} \\ (C)\;\text{Aluminium carbide on reacting with water liberates methane} \\ (D)\;\text{Borone nitride on hydrolysis liberates$NH_3$} \end {array}$

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A)
Answer : Boran exhibits inert pair effect
Option (B) is the correct answer.
Inert pair effect operates on the elements at the end of the group.