WorksheetsSTM3305 Chemical Part 1
Total questions: 10
Worksheet time: 5mins
Which level is responsible for determining the physical behavior of a material?
Level 1
Level 2
Level 3
Level 4
Which type of material is more likely to interact with food?
Plastic
Paper
Glass
Metal
What are the major atoms found in plastics?
C, H
C, O, N, Cl
Si, O
Fe, Al
Which type of bond is responsible for the strength and malleability of metals?
Ionic bond
Covalent bond
Metallic bond
Van der Waals forces
What determines the polarity of a covalent bond?
The number of covalent bonds
The difference in electronegativities
The type of atoms involved
The degree of polymerization
Which type of bond is less commonly found in packaging materials?
Ionic bond
Covalent bond
Metallic bond
Van der Waals forces
What is the main function of the aluminum foil layer in an aseptic carton?
Strength and stiffness
Gas and light barrier
Inner and outer protection
Heat sealing and binding
Which type of bond is responsible for the gas permeation through package walls?
Ionic bond
Covalent bond
Metallic bond
Van der Waals forces
What are the commonly found atoms in glass?
C, H
C, O, N, Cl
Si, O
Fe, Al
What is the main function of paper in packaging materials?
Strength and stiffness
Gas and light barrier
Inner and outer protection
Heat sealing and binding
