(a)
Interpretation:
The application of alumina should be determined.
Concept Introduction:
Alumina is short and convenient name given to aluminum oxide. It is designated by Al2O3.
It is also known as aloxite or alundum.
Properties of aluminum are:
- It is white in color.
- It is odorless in nature.
- It is insoluble in water.
- It is having a density of 3.987 g/cm3.
(b)
Interpretation:
The application of silica should be determined
Concept Introduction:
Silica is a short name provided for silicon dioxide. Its chemical designation is SiO2. Silica is a major constituent of sand.
Properties of silica are:
- It is transparent.
- Its melting point is 1,713 degree Celsius.
- The boiling point is 2950 degree Celsius.
- It appears in white color.
- It affects immune system.
(c)
Interpretation:
The applications barium titanate should be determined.
Concept Introduction:
Barium titanate whose chemical formula is BaTiO3. It is an organic compound.
The properties are:
- It appears in powder from.
- It appears white in color.
- It is odorless in nature.
- It is insoluble in water.
- It dissolves in concentrated HF acid.
(d)
Interpretation:
The applications of zirconia should be determined.
Concept Introduction:
Zirconia is short form termed to zirconium dioxide.It is naturally occurring form with a monoclinic crystalline structure.
Properties of zirconium are:
- It appears white in color.
- It appears in powdered form.
- Its density is 5.68 g/cm3.
- It's melting point is 2,715 degree Celsius.
- Its boiling point is 4,300 degree Celsius.
(e)
Interpretation:
The applications of diamonds should be determined.
Concept Introduction:
Diamond is a crystal which is typically used as gemstone among which diamonds age 1 billion to 3.5 billion years old.
Properties of the diamond are as follows:
- They have high hardness.
- They are chemically stable.
- They appear in various colors like yellow, colorless, brown and grey as well.
- They are isotropic in nature.
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