MCQ
Silicon dissolves in excess of $HF$ due to formation of
- A$SiF_4$
- B$SiH_4$
- ✓$H_2SiF_6$
- D$H_2SiF_4$
$\mathrm{Si}+4 \mathrm{HF} \rightarrow \mathrm{SiF}_{4}+4 \mathrm{H}^{+}$
$\begin{array}{l}\downarrow \mathrm{HF} \\\mathrm{H}_{2} \mathrm{SiF}_{6}\end{array}$
Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.
(Given molar mass of methane in $\mathrm{g} \mathrm{mol}^{-1}: 16$ )