Free Crystalline and Amorphous Solids MCQs with Answers
12 Crystalline and Amorphous Solids MCQs from Physics, each with the correct answer and a written explanation of why it is correct. Free and unlimited, with no account needed.
Crystalline solids have a regular, repeating lattice and a sharp melting point, while amorphous solids lack long-range order and soften over a temperature range. The topic covers unit cells, anisotropy, cleavage, symmetry and examples such as salts, metals, glass and plastics. Crystalline order must not be confused with mere hardness.
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12 questions
- A. Amorphous
- B. Crystalline
- C. Polycrystalline
- D. Quartz
Explanation: The materials in which the disordered structure of a liquid is frozen are typically referred to as amorphous solids.
Correct answer: Amorphous- A. metallic solid.
- B. polymeric solid.
- C. crystalline solid.
- D. amorphous solid.
Explanation: Here's an explanation: * D) Amorphous solid: An amorphous solid is considered an intermediate structure between a solid and a liquid…
Correct answer: amorphous solid.- A. glassy solids
- B. polymeric solids
- C. crystalline solids
- D. amorphous solids
Explanation: Nylon is classified as an amorphous solid because its molecular chains are arranged in a random or disordered manner, unlike the highly…
Correct answer: amorphous solids- A. I only.
- B. II only.
- C. I and III.
- D. II and III.
Explanation: The correct answer is I only. Amorphous solids are characterized by an irregular arrangement of molecules, which causes them to break into…
Correct answer: I only.- A. Metamorphic
- B. Sedimentary
- C. Igneous
- D. Both Options A and B are correct
Explanation: Option A; Metamorphic rocks started out as some other type of rock, but have been substantially changed from their original igneous…
Correct answer: Igneous- A. Refraction
- B. Crystallization
- C. Volatilization
- D. Dispersion
Explanation: Ancient glass, an amorphous solid, undergoes alternate heating due to exposure to the sun during the day and cooling at night and is…
Correct answer: Crystallization- A. Glass
- B. Diamond
- C. Silica
- D. Carbon
Explanation: Amorphous solids have the tendency to flow slowly. It does not form a crystalline solid structure as particles in solids do not move but…
Correct answer: Glass- A. Polarity
- B. Optical activity
- C. Anisotropy
- D. Cleavage plane
Explanation: .A is incorrect since polarity is a separation of electric charge leading to a molecule or its chemical groups having an electric dipole…
Correct answer: Anisotropy- A. critical temperature
- B. absolute temperature
- C. Curie Temperature
- D. normal temperature
Explanation: Ferromagnetic MATERIALS can be permanently magnetized. Curie Temperature: The temperature at which the ferromagnetic element starts to…
Correct answer: Curie Temperature- A. Amorphous substances have a sharp melting point
- B. Amorphous substances do not have a fixed melting point
- C. Amorphous substances have proper geometrical shapes
- D. The particles in amorphous substances are arranged in an orderly manner
Explanation: Amorphous solids, unlike crystalline solids, do not have a fixed melting point.
Correct answer: Amorphous substances do not have a fixed melting point- A. Coefficient of thermal expansion
- B. Lattice energy
- C. Viscosity
- D. Infrared spectroscopy
Explanation: Anisotropy is the property of a material which allows it to change or assume different properties in different directions so the correct…
Correct answer: Coefficient of thermal expansion- A. Diamond
- B. Graphite
- C. Glass
- D. Rock salt
Explanation: Glass is an isotropic material, meaning its properties are the same in all directions.
Correct answer: GlassCrystalline and Amorphous Solids MCQs: common questions
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