Which of the following is considered a primary raw material for the chemical industry?
Correct answer: C. Salt (NaCl)
- A. Sulfuric acid
- B. Ethylene
- C. Salt (NaCl)
- D. Polyethylene
Explanation
Primary raw materials are substances obtained directly from nature, such as air, water, salt (halite), coal, petroleum, and minerals. Chemicals like ethylene and sulfuric acid are important commodities, but they are manufactured from these primary sources.
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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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