Question

what is 3 centre 2 electron bond?

Answer 1

A 3-center 2-electron bond is an electron-deficient chemical bond where three atoms share two electrons. The combination of three atomic orbitals form three molecular orbitals: one bonding, one non-bonding, and one anti-bonding.

Answer 2

$\huge{\mathfrak{ANSWER:-}}$

____________________________________

The Three Center Two Electron Bond popularly called $\sf{\large{Banana \: Bonds.}}$

They are the bonds joining three atoms together but using only two electrons. The bonding pair jumps back and forth between the two pairs of atom holding all three together by resonance. They are two electrons in an MO that spans three atoms.

____________________________________