Page 235 - Chemistry ICSE Class X

Study of Compounds – Hydrogen Chloride 221
(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.
Q 12. Give balanced chemical equation to prepare copper chloride using copper carbonate. [ICSE 2014]
Q 13. State your observation in the following case: [ICSE 2014]
When dilute hydrochloric acid is added to sodium carbonate crystals.
Q 14. The following questions are pertaining to the laboratory preparation of hydrogen chloride gas: [ICSE 2015]
(i) Write the equation for its preparation mentioning the condition required.
(ii) Name the drying agent used and justify your choice.
(iii) State a safety precaution you would take during the preparation of hydrochloric acid.
Q 15. Choose the correct answer from the options given below: [ICSE 2016]
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
Q 16. Write balanced chemical equation for the action of hydrochloric acid on sodium bicarbonate. [ICSE 2016]
Q 17. State your observations when: [ICSE 2016]
(i) Dilute hydrochloric acid is added to lead nitrate solution and the mixture is heated.
(ii) Dilute hydrochloric acid is added to copper carbonate.
(iii) Dilute hydrochloric acid is added to sodium thiosulphate.
Q 18. Identify the gas evolved and give the chemical test in each of the following cases: [ICSE 2016]
(i) Dilute hydrochloric acid reacts with sodium sulphite.
(ii) Dilute hydrochloric acid reacts with iron(II) sulphide.
Q 19. Fill in the blank with the choices given in brackets. [ICSE 2017]
Potassium sulphite on reacting with hydrochloric acid releases _____________ gas. (Cl , SO , H S)
2
2
2
Q 20. State one relevant observation for the following reaction: [ICSE 2017]
Action of dilute hydrochloric acid on iron (II) sulphide.
Q 21. Certain blank spaces are left in the following table and these are labelled as A and B. Identify each of them.
[ICSE 2017]
Lab preparation of Reactants used Products formed Drying agent Method of collection
HCl gas NaCl + H SO 4 A conc. H SO 4 B
2
2
__________________ __________________
Q 22. Write a balanced chemical equation for the following: [ICSE 2018]
Action of dilute hydrochloric acid on magnesium sulphite.
Q 23. State one relevant observation for the following: [ICSE 2018]
Lead nitrate solution is mixed with dilute hydrochloric acid and heated.
Q 24. Name the gas that is produced in the following case: [ICSE 2018]
Action of dilute hydrochloric acid on sodium sulphide.
Q 25. Fill up the blank with the correct choice given in brackets. [ICSE 2018]
Dry hydrogen chloride gas can be collected by _____________ displacement of air. (downward/upward)
Q 26. (i) Name the acid used for the preparation of hydrogen chloride gas in the laboratory. Why is this particular
acid preferred to other acids?
(ii) Write the balanced chemical equation for the laboratory preparation of hydrogen chloride gas. [ICSE 2018]
Q 27. For the preparation of hydrochloric acid in the laboratory: [ICSE 2018]
(i) Why is direct absorption of hydrogen chloride gas in water not feasible?
(ii) What arrangement is done to dissolve hydrogen chloride gas in water?