MCAT Chemistry Question — Ionic Bonds
- Feb 28, 2017
- MCAT Question of the Day
- I only
- I and II only
- I, III, and IV
- I, II, III, and IV
Click for Explanation
Generally, a metal and nonmetal atom form ionic bonds. Metals prefer to give up electrons to form cations whereas nonmetals prefer their reduced anion form. In the case of CaCl2, NaF, and Mg(OH)2, each atom contains a metal that is bonded to a nonmetal. These all represent ionic bonds. While hydrochloric acid tends to dissociate in water to form H+ and Cl–, a pure solution cannot. Pure HCl contains two nonmetals, which forms a polar covalent bond. Therefore, C is the correct answer.
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