The figure given below represents the experiment carried out between conc. sulphuric acid and sodium chloride, which react with each other to form HCl gas.Blue litmus paper is brought near the mouth of the delivery tube to check the presence of HCl acid but no change is observed in the color of litmus paper because: *
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Explanation:
No change appears because dry HCL gas does not produce H3O+ ions which are responsible for the acidic character
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