The external energy source for reaction of one-part adhesives is/are
Correct answer: D. All of these
- A. Light
- B. Moisture
- C. Heat
- D. All of these
Explanation
The correct answer is All of these because one-part adhesives can be activated or cured using various external energy sources such as light, moisture, or heat, depending on the adhesive's chemical composition. Light is used in UV-curable adhesives, moisture acts as a curing agent in moisture-cure adhesives, and heat is applied in thermosetting adhesives. Each of these options represents a viable energy source for different adhesive types, hence collectively they represent the correct answer.
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About Industrial Chemistry
Industrial chemistry applies chemical reactions and material properties to the manufacture of adhesives, dyes and polymers. Coverage includes addition and condensation polymerisation, thermoplastics and thermosetting polymers, the structural basis of colour in dyes, and how adhesive composition enables bonding between surfaces.
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292 free Industrial Chemistry MCQs from Chemistry, each with the correct answer and an explanation. Unlimited attempts, no account needed.
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