Question

Is ${\mathrm{BCl}}_3$ an electron-deficient compound?

Answer 1

Electron deficient compound:

1. When the central atom in a compound does not have enough electrons to form a stable octet configuration, the compound is classified as an electron-deficient compound, also known as a hypo valent compound.
2. For example, boron, with the electrical configuration$1{\mathrm{s}}^{2}2{\mathrm{s}}^{2}2{\mathrm{p}}^1$, creates electron-deficient compounds. Boron only has three valence electrons, but it has four accessible orbitals to accept them.
3. Because boron only possesses three valence electrons, it forms three single bonds with chlorine. ${\mathrm{BCl}}_3$ is an electron-deficient chemical compound as even now Bororn has only six electrons in its outermost orbit.
4. As a result, it can accept two electrons from nucleophiles.

Therefore, ${\mathrm{BCl}}_3$ is an electron-deficient compound.