Question

A gas is produced when Conc. H2SO4 is added to solid sodium chloride taken in a test tube.
The gas coming out of the delivery tube is passed over a dry blue litmus paper and then
over a moist blue litmus paper. What would you observe? Explain reason with the help of
a chemical equation.

CONTENT QUALITY REQUIRED

Answer 1

Hi Rehan.....

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....


Hope it helps

Answer 2

Answer:

may it is helpful to you