how dry hcl gas reacts with litmus paper?
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Answer and Explanation:
Dry litmus paper is one of the natural indicator which helps to recognise if a substance is acid or base. Dry Hcl gas has no effect on the paper as they both don't contain water. Lemon juice turns blue litmus red indicating its acidic presence.
Hydrogen Chloride gas will turn blue litmus paper red only if either the gas is moist or the litmus paper is wet with some pure water. This is because when the gas comes into contact with the water on the paper, it becomes acidic, turning the litmus paper red
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