9. Which of the following statements are correct for ceramic materials?i. They are inorganic substancesii. They are brittleiii. They are good thermal insulatorsa) All threeb) Only i and iic) Only ii and iiid) Only i and iii10. The property of metal by which it can be drawn into wires is calleda) Malleabilityb) Viscosityc) Ductilityd) Tensile strengthincrease11. As percentage of carbon decrease in stainless steel itsa) Corrosion resistanceb) Chromium carbide formation.c) Magnetic featured) Grain size12. What is the mostly observed problem of using Cobalt-Chromium Alloys (CoCr)?a) Hardnessb) Corrosion resistancec) Toxicity/carcinogenic effectd) Toughness13. Fill in the blank questions: (1p/each, total:34p)a) Give the characteristics of biomaterials given below (Use one of them from hard/soft, from ductile/brittle and fromstrong/weak).Metals:Ceramics:Polymers:b) Are the below given items biomaterials? (Yes or No).Contact Lens .........Splinter ..........Vascular graftCrutchesDrugsc)refers to a material that upon placement within the human body starts todissolve and slowly replaced by advancing tissue. Common examples of those materialsared)polymers that flow when heated and easily reshaped & recycled. Commonexamples of those polymers aree) Divalent ions such as calcium form crosslinks ingelation observed.by binding the guluronic residues andf) .............is a liquid chemical that is used for sterilization.

9.Ceramic materials are inorganic materials consisting of a metal/semimetal and a non metal.…

9. Which of the following statements are correct for ceramic materials? i. They are inorganic substances ii. They are brittle iii. They are good thermal insulators a) All three b) Only i and ii c) Only ii and iii d) Only i and iii 10. The property of metal by which it can be drawn into wires is called a) Malleability b) Viscosity c) Ductility d) Tensile strength

9. Which of the following statements are correct for ceramic materials? i. They are inorganic substances ii. They are brittle iii. They are good thermal insulators a) All three b) Only i and ii c) Only ii and iii d) Only i and iii 10. The property of metal by which it can be drawn into wires is called a) Malleability b) Viscosity c) Ductility d) Tensile strength

Principles of Modern Chemistry

8th Edition

ISBN:9781305079113

Author:David W. Oxtoby, H. Pat Gillis, Laurie J. Butler

Publisher:David W. Oxtoby, H. Pat Gillis, Laurie J. Butler

Chapter22: Inorganic Materials

Section: Chapter Questions

Problem 7P

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Concept explainers

Crystal Lattices and Unit Cell

Consider a crystal. The regular and repeating pattern of constituent particles is the most distinguishing feature of crystalline solids. A crystal lattice is formed when these particles are replaced with representative points. The three-dimensional arrangement of constituent particles is known as a crystal lattice. Unit cell is that the smallest portion of a space lattice which when repeated in several directions, generate the whole lattice. Unit cell is a building block of a lattice. It is the smallest unit of cell.

Question

9. Which of the following statements are correct for ceramic materials?
i. They are inorganic substances
ii. They are brittle
iii. They are good thermal insulators
a) All three
b) Only i and ii
c) Only ii and iii
d) Only i and iii
10. The property of metal by which it can be drawn into wires is called
a) Malleability
b) Viscosity
c) Ductility
d) Tensile strength
increase
11. As percentage of carbon decrease in stainless steel its
a) Corrosion resistance
b) Chromium carbide formation.
c) Magnetic feature
d) Grain size
12. What is the mostly observed problem of using Cobalt-Chromium Alloys (CoCr)?
a) Hardness
b) Corrosion resistance
c) Toxicity/carcinogenic effect
d) Toughness
13. Fill in the blank questions: (1p/each, total:34p)
a) Give the characteristics of biomaterials given below (Use one of them from hard/soft, from ductile/brittle and from
strong/weak).
Metals:
Ceramics:
Polymers:
b) Are the below given items biomaterials? (Yes or No).
Contact Lens .........
Splinter ..........
Vascular graft
Crutches
Drugs
c)
refers to a material that upon placement within the human body starts to
dissolve and slowly replaced by advancing tissue. Common examples of those materials
are
d)
polymers that flow when heated and easily reshaped & recycled. Common
examples of those polymers are
e) Divalent ions such as calcium form crosslinks in
gelation observed.
by binding the guluronic residues and
f) .............
is a liquid chemical that is used for sterilization.

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