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  4. Assertion: Sulphuric acid reacts with sodium chloride in the following way: 2NaCl + H2SO4 → 2HCl + Na2SO4 Reason: Sulphuric acid because of its low volatility can be used to manufacture more volatile acids from their corresponding salts.

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Q. Assertion : Sulphuric acid reacts with sodium chloride in the following way :
$2NaCl + H_2SO_4 \to 2HCl + Na_2SO_4$
Reason : Sulphuric acid because of its low volatility can be used to manufacture more volatile acids from their corresponding salts.

The p-Block Elements - Part2

Solution:

In the reaction $H_2SO_4$ is displacing $HCl$ (more volalite acid) from its salt.