Chemistry · Acids, Bases and Salts
Why does dry HCl gas NOT change the colour of dry blue litmus paper, while aqueous HCl does?
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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- 1Dry litmus paper is chemically unreactive
- 2HCl reacts with litmus only in the gaseous state
- 3Dry HCl behaves as a weak acid
- 4HCl only dissociates into H+ ions in the presence of water✓
Correct answer
HCl only dissociates into H+ ions in the presence of water
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