TS EAMCET · Chemistry · p Block Elements (Group 13 & 14)
\(\mathrm{SiO}_2\) reacts with
- A \(\mathrm{H}_2 \mathrm{SO}_4, \mathrm{HF}\)
- B \(\mathrm{HF}, \mathrm{NaOH}\)
- C \(\mathrm{Na}_2 \mathrm{CO}_3, \mathrm{NaOH}\)
- D \(\mathrm{Na}_2 \mathrm{CO}_{31} \mathrm{H}_2 \mathrm{SO}_4\)
Answer & Solution
Correct Answer
(B) \(\mathrm{HF}, \mathrm{NaOH}\)
Step-by-step Solution
Detailed explanation
\[ \begin{aligned} & \mathrm{SiO}_2+6 \mathrm{HF} \longrightarrow \mathrm{H}_2\left[\mathrm{SiF}_6\right]+2 \mathrm{H}_2 \mathrm{O} \\ & \mathrm{SiO}_2+2 \mathrm{NaOH} \longrightarrow \mathrm{Na}_2 \mathrm{SiO}_3+\mathrm{H}_2 \mathrm{O} \end{aligned} \]
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