JAMB - Chemistry (1978 - No. 24)
When ammonia and hydrogen ion bond together to form ammonium ion, the bond formed is called
ionic bond
electrovalent bond
covalent bond
co-ordinate bond
hydrogen bond
Explicació
When one atom supplies both electrons in forming a two-electron bond, it is known as a dative covalent or coordinate bond. If two atoms contribute one electron each, it is known as a simple covalent bond. when ammonia and hydrogen ions bond together to form ammonium ion, the type of bond formed is a dative/coordinate covalent bond, because ammonia supplied both electrons with hydrogen contributing nothing.