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 wel. litmus paper? What conclusion do you draw
by this experiment?​

Answer 1

Answer:

HCl gas is produced

Explanation:

The gas produced is HCl....

On passing through dry blue litmus no change occurs....

But on passing through wet blue litmus , blue litmus paper turns to red ..... This means the gas is acidic.....

Chemical Equation ---

2NaCl + H2SO4 -----> Na2SO4 + 2HCl

This activity shows that hydrogen ions in HCl are produced in the presence of water.... The separation of H+ ion from HCl molecules cannot occur in the absence of water....

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