Question:
Identify the incorrect statement about silica.
Identify the incorrect statement about silica.
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Silica: 3D network, acidic, reacts with HF and NaOH.
Updated On: Jun 5, 2025
- It is acidic in nature.
- It has no reaction with most of acids except HF.
- With NaOH it forms sodium silicate.
- Like graphite, it has two dimensional structure.
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The Correct Option is D
Solution and Explanation
Silica (SiO$_2$) is acidic in nature. It reacts with bases to form silicates.
Silica does not react with most acids except hydrofluoric acid (HF), with which it forms silicon tetrafluoride (SiF$_4$).
Silica reacts with NaOH to form sodium silicate (Na$_2$SiO$_3$).
Silica has a three-dimensional network structure, unlike graphite, which has a layered, two-dimensional structure.
Silica does not react with most acids except hydrofluoric acid (HF), with which it forms silicon tetrafluoride (SiF$_4$).
Silica reacts with NaOH to form sodium silicate (Na$_2$SiO$_3$).
Silica has a three-dimensional network structure, unlike graphite, which has a layered, two-dimensional structure.
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