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NTA Abhyas JEE Main2020Chemistryp Block Elements (Group 15, 16, 17 & 18)Practice

HF is not preserved in glass bottles because

Options

  1. AIt reacts with the aluminium oxide of the glass
  2. BIt reacts with S i O 2 of the glass
  3. CIt reacts with the visible part of the light
  4. DIt reacts with sodium oxide of the glass

Correct answer

B. It reacts with S i O 2 of the glass

Step-by-step solution

SiO 2   +   4   HF → SiF 4   +   2H 2 O ; SiF 4   +   2   HF → H 2 SiF 6 HF is not preserved in glass bottles because it reacts with S i O 2 of the glass.

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