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Glass is made from the mixture of?

  • A.Sand and salt
  • B.Sand and silicates
  • C.Quartz and mica
  • D.None of these

Answer: B

Glass is made from a mixture of sand (silica) and silicates - sand fused with sodium carbonate and limestone, which give sodium and calcium silicates.

The soda lowers the melting point of silica from about 1,700°C to a workable temperature, and the lime keeps the product from dissolving in water.

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