Which of the following is not calcareous material:
Correct answer: C. Clay
- A. Lime stone
- B. Marine shell
- C. Clay
- D. Marble
Explanation
Calcareous materials are those that contain calcium carbonate (CaCO3) or are derived from it. Clay, being primarily composed of silicates and other minerals, does not contain calcium carbonate and is therefore not considered a calcareous material.
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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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