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Home /
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Chemistry /
Solids /
2026 /
Quiz 1

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MDCAT Practice Test - Practice Test - Chemistry - Solids - 2026 Quiz

Attempt 10 MCQs on MDCAT Practice Test - Practice Test - Chemistry - Solids (Year 2026) | Quiz 1

1. What type of solid has a regular, repeating internal structure?

Crystalline solid
Amorphous solid
Both
Neither

2. What is the term for a solid without a regular repeating pattern?

Amorphous solid
Crystalline solid
Polycrystalline solid
Single crystal

3. Which type of crystal is held together by ionic bonds?

Ionic crystals
Covalent network crystals
Molecular crystals
Metallic crystals

4. Diamond and graphite are examples of which crystal type?

Covalent network crystals
Ionic crystals
Molecular crystals
Metallic crystals

5. What type of crystal has low melting points due to weak forces?

Molecular crystals
Ionic crystals
Covalent network crystals
Metallic crystals

6. Which crystal type is characterized by a sea of delocalized electrons?

Metallic crystals
Ionic crystals
Covalent network crystals
Molecular crystals

7. What factors affect the shape of ionic crystals?

Relative ion sizes
Magnitude of charges
Coordination number
All of these

8. Which rule helps predict the coordination number in ionic crystals?

Radius ratio rule
Fajans' rule
Octet rule
VSEPR theory

9. What is the radius ratio range for octahedral coordination (CN=6) in ionic crystals?

0.414 - 0.732
0.225 - 0.414
0.732 - 1.0
> 1.0

10. Which radius ratio range corresponds to tetrahedral coordination (CN=4)?

0.225 - 0.414
0.414 - 0.732
0.732 - 1.0
< 0.155

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Instructions: Select one answer per question. After submitting, you will see your score, correct answers, and explanations.

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