Chemistry

Question Analysis
This question involves bonding type and solubility. The main focus is on explaining why ionic compounds often dissolve in water and using bonding concepts to predict the solubility of a covalent compound.

Key Concept Explanation
Ionic compounds are generally soluble in water because they interact strongly with water molecules.
Nonpolar covalent compounds are typically insoluble in water due to weak interactions with water molecules.

Step-by-step Solution
1. Why many ionic compounds dissolve in water:
Ionic compounds are made of positive and negative ions.
Water molecules have partial charges (δ⁺ on H, δ⁻ on O).
Water molecules surround ions and form ion–dipole attractions.
These attractions can overcome the ionic lattice forces.
As a result, ions separate and the compound dissolves.
2. Solubility of CCl₄:
CCl₄ is a covalent compound.
It has a symmetrical tetrahedral shape, making it nonpolar overall.
Water is polar, and polar solvents do not dissolve nonpolar substances well.
Therefore, CCl₄ is not soluble in water.
3. Conclusion:
(a) Water is a polar molecule with partial po...