Which type of solid has a definite melting point and is usually hard and brittle

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Question: Which type of solid has a definite melting point and is usually hard and brittle? (2022)

Options:

Correct Answer: Ionic solids

Exam Year: 2022

Solution:

Ionic solids have a definite melting point and are typically hard and brittle due to the strong ionic bonds between the ions.

Which type of solid has a definite melting point and is usually hard and brittle? (2022)

Which type of solid has a definite melting point and is usually hard and brittle? (2022)

Step 1: Understand what a solid is. A solid is a state of matter that has a definite shape and volume.
Step 2: Learn about melting point. The melting point is the temperature at which a solid turns into a liquid.
Step 3: Identify types of solids. There are different types of solids, such as ionic solids, covalent solids, metallic solids, and molecular solids.
Step 4: Focus on ionic solids. Ionic solids are made of positive and negative ions held together by strong ionic bonds.
Step 5: Recognize the properties of ionic solids. They have a definite melting point, meaning they melt at a specific temperature.
Step 6: Note the hardness and brittleness. Ionic solids are usually hard and brittle because the strong ionic bonds make them tough, but they can break easily when force is applied.

No concepts available.