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Acidic Nature vs Percentage S Characters

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Question

What happens when silica is treated with NaOH?

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Solution

Dear student,
Silica or SiO₂ is an acidic oxide. It reacts with NaOH(base) to form Na₄SiO₄ and H₂O.

SiO₂ + 4NaOH ------> Na₄SiO₄ + 2H₂O

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