passwella.
Menu

JAMB Chemistry 1982 Question 5

Question 5

Chemical Bonding

Which of the following bonds exist in crystalline ammonium chloride (NH4Cl)?

  1. A.Ionic and covalent
  2. B.Ionic and co-ordinate
  3. C.Ionic, covalent and co-ordinate
  4. D.Covalent, co-ordinate and metallic
  5. E.Ionic, covalent and metallic
Show the answer and explanation

Answer: C (Ionic, covalent and co-ordinate)

Explanation

NH4+ and Cl− are held by ionic bonds; inside NH4+ three N–H bonds are covalent and one is a co-ordinate (dative) bond.