passwella.
Menu

JAMB Chemistry 1978 Question 26

Question 26

Chemical Bonding

When ammonia and hydrogen ion bond together to form ammonium ion, the bond formed is called

  1. A.ionic bond
  2. B.electrovalent bond
  3. C.covalent bond
  4. D.co-ordinate bond
  5. E.hydrogen bond.
Show the answer and explanation

Answer: D (co-ordinate bond)

Explanation

The nitrogen in NH3 donates its lone pair to the H+ ion, so both shared electrons come from one atom: a co-ordinate (dative) bond.