Silica (SiO₂)can Be Prepared from Silicon Ethoxide by the Sol-Gel

question 49

Multiple Choice

Silica (SiO₂) can be prepared from silicon ethoxide by the sol-gel process.Write a balanced equation for the hydrolysis of silicon ethoxide.

• A)SiCl₄ + 4 HOCH₂CH₃ + 4 NH₃ → Si(OCH₂CH₃)₄ + 4 NH₄Cl (in benzene)
• B)Si(OCH₂CH₃)₄ + 4 H₂O → Si(OH)₄ + 4 HOCH₂CH₃
• C)Si(OCH₂CH₃)₄ + 4 HOCH₃ → Si(OCH₃)₄ + 4 HOCH₂CH₃
• D)Si(OCH₃)₄ + 4 H₂O → Si(OH)₄ + 4 HOCH₃

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