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AP EAMCET2008Chemistryp Block Elements (Group 13 & 14)

Identify B in the following reaction H ₄ SiO ₄ - H ₂ O 1000 ^ C A Carbon B+ CO

Options

  1. Acorundum
  2. Bquartz
  3. Csilica
  4. Dcarborundum

Correct answer

C. silica

Step-by-step solution

Orthosilicic acid ( H ₄ SiO ₄ ) , on heating at high temperature, loses two water molecules and gives silica ( SiO ₂ ) which on reduction with carbon gives carborundum ( SiC ) and CO . H ₄ SiO ₄ -2 H ₂ O 1000^ C SiO ₂ C carborundum SiC + CO

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