JAMB Mathematics 2022 Objective — Question 39
Question 39 of 41 from the Joint Admissions and Matriculation Board (JAMB) Mathematics 2022 Objective paper, with the correct answer and a full explanation.
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Ionic compounds have high melting and boiling points. Which of the following is correct?
- A. Ionic compounds have low melting points
- B. Ionic compounds are usually gaseous at room temperature
- C. Ionic compounds have high melting and boiling pointsCorrect
- D. Ionic compounds are soft
Explanation
Ionic compounds have strong electrostatic attractions between ions in a crystal lattice. Large amounts of energy are needed to break these attractions, giving high melting and boiling points.
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