Name two gases which can be used in the study of the fountain experiment.

Ammonium chloride and hydrogen chloride gas

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Ammonia gas and hydrogen chloride gas

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Ammonia gas and chlorine gas

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Ammonia gas and hydrogen gas

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Solution

The correct option is B Ammonia gas and hydrogen chloride gas
Two gases that can be used in the study of fountain experiment is ammonia gas and hydrogen chloride gas.

The experiment introduces concepts like solubility and the gas laws at the entry level. It explains the alkalinity or acidity property of gases when litmus is added to the reaction mixture and shows the colour change by the gas dissolving in water.

Hence, option B is correct.

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Similar questions

Q. Ammonia gas reacts with hydrogen chloride gas to produce ammonium chloride. The physical state in which ammonium chloride is present is _________.

Q. Gases: ammonia, chlorine, hydrogen chloride and sulphur dioxide

Select the gas that matches the description given.

Statement : The gas turns moist red litmus paper blue.

Q. For the formation of 3.65 g of hydrogen chloride gas, what volumes of hydrogen gas and chlorine gas are required at NTP conditions ?

Q. Assertion :In the Fountain Experiment the gas used is hydrogen chloride or ammonia. Reason: Ammonia has very pungent irritating smell which is highly distinct and can be distinguished from choking smell of hydrochloric acid.

(a) Draw a labelled diagram for the laboratory preparation of hydrogen chloride gas.
(b) Give the balanced equation for the reaction.
(c) Name the drying agent used in drying hydrogen chloride gas.
(d) Phosphorus pentoxide and calcium oxide are good drying agents but they cannot be used to dry hydrogen chloride gas. Why?

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