- Simple experiment to show the density of the gas (Hydrogen Chloride) –heavier than air.
- Solubility of hydrogen chloride (fountain experiment); setting of the apparatus, procedure, observation, inference
When dilute HCl is added to a salt Q, a brisk effervescence is produced and the gas turns lime water milky.
When NH4OH solution is added to the above mixture (after adding dilute HCl), it produces a white precipitate which is soluble in excess NH4OH solution.
Choose the correct answer from the options given below :
The aim of the Fountain experiment is to prove that :
(A) HCl turns blue litmus red
(B) HCl is denser than air
(C) HCl is highly soluble in water
(D) HCl fumes in moist air
Study the figure given below and answer the questions which follow:
1) Identify the gas Y.
2) What property of gas Y does this experiment demonstrate?
3) Name another gas which has the same property and can be demonstrated through this experiment.