Question

Define Ionic bond and covalent bond

Answer 1

when an compound is formed by complete  transfer of electrons it is called as ionic bond
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when a compound is formed by sharing of electrons it is called covalent bond

Answer 2

Ionic bond is formed due to complete transfer of electrons from one atom of an element to one atom of other element.

As in NaCl

Covalent bond is formed due to mutual sharing of electrons between the atoms.

As in NH3

hope this helps u❤️