50 cm3 of sulphur (IV) oxide, 800 cm3 of ammonia, 450 cm3 of hydrogen chloride, 1.0 cm3 of at 15°C. Which of the following is suitable for demonstrating the...

Answer Details

The fountain experiment is a classic chemistry demonstration where a gas is produced in a container and bubbles up through a liquid, creating a "fountain" effect. To perform this experiment, you need a gas that is less dense than the liquid and can dissolve in it to form bubbles. Out of the given options, only ammonia and hydrogen chloride can dissolve in water to form bubbles that are less dense than the liquid, making them suitable for the fountain experiment. Carbon (IV) oxide and sulphur (IV) oxide do not dissolve in water to form bubbles, and sulphur (IV) oxide and hydrogen chloride may react with each other to produce a toxic gas, making them unsuitable for the fountain experiment. Therefore, option C, ammonia and hydrogen chloride, is the suitable choice for the fountain experiment.