Question

All of the following are examples of ceramic materials except:
A.Bakelite
B.Aluminium oxide
C.Magnesium oxide
D.Soda-lime glass
E.Clay

Answer 1

Hint: Ceramic materials are the materials that are non-metallic in nature or based on the carbon compound, or are material of nitride or carbide, non-metallic, inorganic, often crystalline oxide. Some other elements, such as silicon or carbon, may be considered as ceramics.

Complete step by step answer:
Ceramic materials are known for their properties such as:
Brittleness
Hardness
Low thermal conductivity and
High chemical stability
Now we will study about each material given and will pick the odd one out:

Bakelite: It was the first plastic derived from synthetic components. It is formed from a condensation reaction between phenol with formaldehyde, forming a thermosetting phenol formaldehyde resin.
Aluminium oxide: It is a chemical compound formed by a combination of oxygen and aluminium having molecular formula \[A{l_2}{O_3}\]. It is used for its strength and hardness and is a substitute for industrial diamonds.
Magnesium oxide: It is a chemical compound formed by combination of oxygen and magnesium having molecular formula \[MgO\]. It is a source of magnesium supplement for the human body.
Soda-lime glass: It is also known as soda-lime or silica glass, used in the manufacturing of glass containers, food, beverages.
Clay: It is a type of fine-grained soil material containing clay mineral, which provides it the property of plasticity when mixed with water.
Thus, the correct option is A i.e. Bakelite which is a thermosetting plastic.



Note:
Bakelite has many important properties that makes it valuable for use. It is easily moulded material, decreasing its manufacturing time. It has a disadvantage of being a fragile material which means it breaks easily.