WAEC Chemistry 2019 Objective — Question 14

Question 14 of 50 from the West African Examinations Council (WAEC) Chemistry 2019 Objective paper, with the correct answer and a full explanation.

Which of the following compounds has coordinate bonds in its structure?

A. Al2Cl6Correct
B. MgCl2
C. AgCl
D. NaCl

Explanation

In Al2Cl6 (the dimer of AlCl3), two AlCl3 units are linked together through coordinate (dative) covalent bonds formed by chlorine atoms donating lone pairs.

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