which-feature-of-boranes-structure-contributes-most-significantly-to-its-electro

Question

Which feature of borane's structure contributes most significantly to its electron deficiency?

Accepted Answer

The presence of only three valence electrons in boron.

Answer

The high electronegativity of hydrogen atoms.

Answer

The double bonds between boron and hydrogen.

Answer

The presence of a lone pair on boron.