Ionic compounds in general possess bothA High melting point and non-directional bonds B High melting point and low boiling points C Directional bonds and low boiling point D High solubility in polar and non-polar solvent
Question
Ionic compounds in general possess bothA High melting point and non-directional bonds B High melting point and low boiling points C Directional bonds and low boiling point D High solubility in polar and non-polar solvent
Solution 1
Ionic compounds generally possess High melting points and non-directional bonds. This is because ionic compounds are formed by the electrostatic attraction between positive and negative ions. This strong attraction results in a high melting point. The bonds in ionic compounds are non-directional because the attraction between ions exists in all directions. Therefore, the correct answer is A: High melting point and non-directional bonds.
Solution 2
The correct answer is A. Ionic compounds generally have high melting points and non-directional bonds.
Here's why:
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High Melting Point: Ionic compounds are made up of positive and negative ions. These ions are held together by strong electrostatic forces of attraction, which require a lot of heat energy to break. This is why ionic compounds have high melting points.
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Non-Directional Bonds: In ionic compounds, the electrostatic forces of attraction act in all directions and not in any particular direction. This is why the bonds in ionic compounds are said to be non-directional.
Option B is incorrect because ionic compounds generally have high boiling points due to the strong forces of attraction between the ions.
Option C is incorrect because, as mentioned earlier, ionic compounds have non-directional bonds, not directional.
Option D is incorrect because ionic compounds are generally soluble in polar solvents like water, but not in non-polar solvents. This is because polar solvents can separate the ions in the ionic compound, leading to its dissolution. Non-polar solvents cannot do this.
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Melting points and boiling points of ionic compounds are generally ____ than those of covalent compounds.
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