AP EAMCET · Chemistry · p Block Elements (Group 13 & 14)
Which of the following mineral acids can attack \(\mathrm{SiO}_2\) ?
- A Conc. \(\mathrm{HNO}_3\)
- B \(\mathrm{H}_2 \mathrm{SO}_4\)
- C HF
- D \(\mathrm{HCl}\)
Answer & Solution
Correct Answer
(C) HF
Step-by-step Solution
Detailed explanation
Although hydrofluoric acid (HF) is a weak acid, it does attack silicates very effectively. For this reason, its primary laboratory use is to attack and dissolve silicate minerals. Hence, the correct option is (c).
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