MCQ
Ionic compounds do not have
- AHard and brittle nature
- BHigh melting and boiling point
- ✓Directional properties
- DSoluble in polar solvents
✓
Answer
Correct option: C.
Directional properties
c
Hard and brittle: Due to the presence of a strong force of attraction between the positive and negative ions ionic compounds are solids and are hard to break. They generally break into pieces when pressure is applied as they are brittle.
Hard and brittle: Due to the presence of a strong force of attraction between the positive and negative ions ionic compounds are solids and are hard to break. They generally break into pieces when pressure is applied as they are brittle.
High melting and boiling points: Due to the presence of an electrostatic force of attraction between ions, a large amount of energy is required to break the ionic bonds between the atoms. Thus, ionic compounds have high melting and boiling points.
Non-Directional nature: Ionic bonds are strong electrostatic attraction forces formed between positive and negative ions. This bond is nondirectional, this means the pull of electron doesn't favour one item over another.
Soluble in polar solvents: Ionic compounds are soluble in polar solvents like water. Polar water molecules have a strong attraction for charged ions and the charged ions become solvated as they dissociate into the water. Hence the ionic compounds are soluble in polar solvents.
Therefore, ionic compounds do not have direction properties. Directional bonds are the ones where a specific orientation of atoms or groups is necessary.
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