Question

what do you mean from coordinate bond

Answer 1

hey mate...here is your answer...

it is a special type of covalent bond produced when one of the bonded atoms contributes a pair of electron
it is represented by an arrow mark

hope it helps you

Answer 2

A covalent chemical bond between two atoms that is produced when one atom shares a pair of electrons with another atom lacking such a pair....

Hope this helps you..