Why does dry HCl gas not change the colour of dry litmus paper?
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2
Answer:
A dry HCl gas has no H + so it does not show any acidic character therefore, no change in colour takes place until we moisten the litmus paper.
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Answer:
In case of dry HCl gas, there is no presence of water and so, the dye on litmus paper cannot react with the gas. So, any dry gas will not give any change in the colour of litmus paper.
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