The major constituents of glass are____________________?
Correct answer: B. Sand, lime and soda ash
- A. Lime, clay and soda ash
- B. Sand, lime and soda ash
- C. Silica, alumina and clay
- D. Silica, alumina and soda ash
Explanation
Ordinary soda-lime glass is made mainly from silica-rich sand, with soda ash lowering the melting temperature and lime improving chemical durability. Clay and alumina are not the standard major constituents listed for this glass composition.
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