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NEETChemistryp Block Elements (Group 13 & 14)

Which substances attack silica?

Options

  1. AOxygen and nitrogen
  2. BHalogens and dihydrogen
  3. CHydrofluoric acid (HF) and sodium hydroxide (NaOH)
  4. DQuartz and cristobalite

Correct answer

C. Hydrofluoric acid (HF) and sodium hydroxide (NaOH)

Step-by-step solution

Silica is attacked by HF and NaOH.

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