Which of the following pairs represents opposing characteristics of materials? For an impression material to be easily removed from the mouth after setting, it should have high...... Which of the following pairs represents opposing characteristics of materials? For an impression material to be easily removed from the mouth after setting, it should have high... Which type of bond occurs in asymmetric molecules with permanent dipoles? Metals are electrical conductors due to the presence of:
Understand the Problem
The question involves identifying opposing characteristics of materials, suitable properties for impression materials, types of chemical bonds, and the electrical conductivity of metals.
Answer
5. Ductile & brittle, 6. Flexibility, 7. Hydrogen Bonding, 8. Free electrons
- B, 6. C, 7. C, 8. D
Answer for screen readers
- B, 6. C, 7. C, 8. D
More Information
For impression materials, high flexibility ensures easy removal without damage. Electrons in metals are delocalized, allowing conductivity.
Tips
Confusing ductility with elasticity or toughness is common. Flexibility is crucial for impression materials.
Sources
- Engineering Materials 2 - materialstandard.com
- Ultimate Guide to Types of Dental Impression Materials - safcodental.com
- STRUCTURE OF MATTER AND PRINCIPLES OF ADHESION - indiandentalacademy.blogspot.com
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