Chemistry
(a) (i) Name the experiment illustrated below.
(ii) State the colour of the water that has entered the round-bottomed flask.
(b) What property of hydrogen chloride is demonstrated when it is collected by downward delivery (upward displacement)?
Hydrogen Chloride
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Answer
(a) (i) Fountain Experiment (ii) Red
(b) Collection of Hydrogen chloride gas by downward delivery indicates that Hydrogen chloride gas is heavier than air. (Hydrogen chloride gas is about one and a quarter times heavier than air.)
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Related Questions
Study the figure given below and answer the questions that follow :
(i) Identify the gas Y.
(ii) What property of gas Y does this experiment demonstrate?
(iii) Name another gas which has the same property and can be demonstrated through this experiment.
Identify the gas evolved and give the chemical test in each of the following cases.
Dilute hydrochloric acid reacts with:
(i) Iron [II] sulphide.
(ii) Sodium sulphite.
State your observations:
(a) HCl gas is passed through lead nitrate solution and the mixture is heated.
(b) Hydrochloric acid is added to silver nitrate solution.
(c) Ammonium hydroxide solution is added to the resultant product of part (b).
Refer to the diagram given below and write balanced equations with conditions, if any, for the following conversions P to S.
