Topic 6.2.53 min read
6.2.5 Hardness and Brittleness
Hardness: · Lattice stiffness makes ionic compounds hard. Brittleness: · However, when a voltage is applied, like-charged ions can be pushed together, causing repulsion and brittleness — a tendency to break. Key point: Ionic compounds are hard but brittle because of t
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6.2.5 Hardness and Brittleness
What is it?
Hardness: - Lattice stiffness makes ionic compounds hard. Brittleness: - However, when a voltage is applied, like-charged ions can be pushed together, causing repulsion and brittleness — a tendency to break. Key point: Ionic compounds are hard but brittle because of t
In simple words
6.2.5 Hardness and Brittleness is a core idea in this chapter. Learn the meaning first, then the main parts, then one clear example.
Recommended for Class 10
Full school-level explanation
Hardness: - Lattice stiffness makes ionic compounds hard. Brittleness: - However, when a voltage is applied, like-charged ions can be pushed together, causing repulsion and brittleness — a tendency to break. Key point: Ionic compounds are hard but brittle because of t
Why it matters
Understanding 6.2.5 Hardness and Brittleness helps you answer definition, explanation, and application questions in this chapter.
Deeper understanding
Go deeper on 6.2.5 Hardness and Brittleness: connect the definition to reasons, relationships, exceptions, and exam wording.
Exam focus
Key Point 1
Key Point 2
Key Point 3
Key Point 4
Exam focus
Quick revision
- Hardness: - Lattice stiffness makes ionic compounds hard. Brittleness: - However, when a voltage is appl
For long answers on 6.2.5 Hardness and Brittleness: define clearly → explain the main parts → give one example → state one exam caution.
Exam Focus
Exam Focus
Important points
- Hardness: - Lattice stiffness makes ionic compounds hard. Brittleness: - However, when a voltage is appl
Common exam traps
- Do not write about 6.2.5 Hardness and Brittleness without a clear definition.
- Do not mix this idea with a neighbouring chapter concept.
Long question structure
Definition → key parts → example → exam caution
Common Mistakes
Common Mistakes
- Mistake
Do not write about 6.2.5 Hardness and Brittleness without a clear definition.
- Mistake
Do not mix this idea with a neighbouring chapter concept.
- Mistake
Do not list facts without showing how they connect.
Revision Zone
60-Second Revision
Quick cues from this topic — use them for last-minute revision.
Hardness: - Lattice stiffness makes ionic compounds hard. Brittleness: - However, when a voltage is appl
Hardness: - Lattice stiffness makes ionic compounds hard. Brittleness: - However, when a voltage is applied, like-charged ions can be pushed
- Definition
- Hardness: - Lattice stiffness makes ionic compounds hard. Brittleness: - However, when a voltage is applied, like-charged ions can be pushed
- Critical warning
- Do not write about 6.2.5 Hardness and Brittleness without a clear definition.
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Exam Practice
Define
Q1. Define 6.2.5 Hardness and Brittleness.
Explain
Q2. Explain the main ideas in 6.2.5 Hardness and Brittleness.
Example
Q3. Give one clear example of 6.2.5 Hardness and Brittleness and say why it fits.
Mistake
Q4. State one common mistake students make about 6.2.5 Hardness and Brittleness.
Exam note
Q5. Write a short exam note on 6.2.5 Hardness and Brittleness: definition, two points, one example.
Sources & References
School-standard facts for Matric and Intermediate. Original explanations — not copied from textbooks.