Which substance in cement has the highest %age?
Correct answer: D. SiO2
- A. MgO
- B. Al2O3
- C. CaO
- D. SiO2
Explanation
Silicon dioxide (SiO2), also known as silica, typically makes up the highest percentage by weight in cement. It is one of the main components of cement and serves as a key ingredient in the formation of the cementitious matrix. Silica reacts with calcium oxide (CaO) and other components to form calcium silicate hydrates (C-S-H), which contribute to the strength and durability of the cementitious 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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