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# Which of the following statements regarding boron is not correct ?

$\begin {array} {1 1} (A)\;\text{Boron compounds act as Lewis acid} \\ (B)\;\text{Boron is a good conductor of electricity } \\ (C)\;\text{Colemanite is one of the chief minerals of boron } \\ (D)\;\text{Boron exists in two isotopic forms$^{10}B$and$^{11}B$} \end {array}$

Boron has a very low electrical conductivity.
Ans : (B)