Question

what are coordinate covalent bond or dative bond?

Answer 1

It is also sharing of electron same as covalent bond but here one atom donates both electrons and shared among the two

Answer 2

Correct Answer

Coordinate covelent bond or Dative covalent bond:

• Coordinate covalent or dative covalent bonding is a type of covalent bonding in which the bond pair of electrons is donated by one bonded atom only.

Explanation:

• The atom which donates the electron pair is called donor and the atom which accepts the electron pair is called acceptor.A small arrow is usually used to indicate the atom and pair of electron being donated. The head of arrow is towards the acceptor atom.

• The non-bonded electron pair available on an atom, like the one available on Nitrogen in ammonia.( NH3) is called a lone pair.

Example:

• When a proton (H) approaches a molecule with a lone pair of electrons, that lone pair is donated to H+ and a coordinate covalent bond is formed, e.g. formation of ammonium radical (NH4+).