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Question
Give reason for the following:
Sulphuric acid can form two kinds of salts with sodium chloride.
Solution
Sulphuric acid when reacts with sodium chloride it forms sodium bisulphate and hydrochloric acid because sulphuric acid when treated with salts of more volatile acids displaces the more volatile acid.
\[\ce{NaCl + H2SO4 ->[200°C] NaHSO4 + HCl}\]
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