Question

28. When sulphuric acid is added to lg solid sodium chloride taken in a test tube, which gas is released? What changes do you observe when you test the gas with dry and wet litmus paper? What conclusion do you draw by this experiment? ​

Answer 1

Answer:

Here is your answer

Explanation:

When sulfuric acid is reacted with sodium chloride, it leads to the formation of sodium sulfate and also releases hydrogen chloride gas. The gas evolved is acidic in nature.

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Answer 2

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• The gas produced is HCL.

• Dry blue litmus paper does not change colour but wet litmus paper changes its colour to red.

• This is because in the presence of water, HCl dissociates to give H+ ions.$\bf \: HCl(g)+ H_{2}O (l)→ H_{3} {O}^{ + } \: \: or \: {H}^{ + } _{aq} \: + \: {Cl}^{ - }$