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Selina solutions for Concise Chemistry Class 10 ICSE chapter 8 - Study of Compounds - Hydrogen Chloride [Latest edition]

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Concise Chemistry Class 10 ICSE - Shaalaa.com

Chapter 8: Study of Compounds - Hydrogen Chloride

Exercise - 8Exercise -8

Selina solutions for Concise Chemistry Class 10 ICSE Chapter 8 Study of Compounds - Hydrogen ChlorideExercise Exercise - 8, Exercise -8 [Pages 147 - 149]

Exercise - 8 | Q 1 | Page 147

Draw a labelled diagram for the laboratory preparation of hydrogen chloride gas and answer the following.

a. Name the acid used. Why is this particular acid preferred to other acids?

b. Give the balanced equation for the reaction.

c. Name the drying agent used in drying hydrogen chloride gas.

d. Phosphorous pentoxide and calcium oxide are good drying agents, but they cannot be used to dry hydrogen chloride gas. Why?

e. Why is the direct absorption of HCl gas in water not feasible?

f. What arrangement is done to dissolve HCl gas in the water?

Exercise - 8 | Q 2.1 | Page 147

Explain why Anhydrous HCl is poor conductor while aqueous HCl is excellent conductor.

Exercise - 8 | Q 2.2 | Page 147

Explain why When the stopper of a bottle full of hydrogen chloride gas is opened there are fumes in the air.

Exercise - 8 | Q 2.3 | Page 147

Explain why A solution of hydrogen chloride in water turns blue litmus red, and conducts electricity, while a solution of the same gas in toluene:
(i) has no effect on litmus, and
(ii) does not conduct electricity.

Exercise - 8 | Q 2.4 | Page 147

Explain why thick white fumes are formed when a glass rod dipped in NH4OH is brought near the mouth of a bottle full of HCl gas.

Exercise - 8 | Q 2.5 | Page 148

Explain why dry hydrogen chloride gas does not affect a dry strip of blue litmus paper but it turns red in the presence of a drop of water.

Exercise - 8 | Q 2.6 | Page 148

Explain why hydrogen chloride gas is not collected over water.

Exercise - 8 | Q 3 | Page 148

The given set up in the figure is for the preparation of an acid.

(a) Name the acid prepared by this method.
(b) name the reactants used.
(c) why empty flask is used
(d) what is the drying agent used? Why is this drying agent chosen?
(e) what is the role of the inverted funnel in the arrangement

Exercise - 8 | Q 4.1 | Page 148
  1. Name the experiment illustrated below.
  2. State the colour of the water that has entered the round-bottomed flask.

Exercise - 8 | Q 4.2 | Page 148

What property of hydrogen chloride is demonstrated when it is collected by downward delivery (Upward displacement)?

Exercise - 8 | Q 5.1 | Page 148

Name an element which reacts with hydrogen to form a compound which is strongly acidic in water.

Exercise - 8 | Q 5.2 | Page 148

Explain why dilute hydrochloric acid cannot be concentrated by boiling beyond 22.2%.

Exercise - 8 | Q 6 | Page 148

How will you prove that Hydrochloric acid contains (i) Hydrogen (ii) Chlorine?

Write equations for the reactions. 

Exercise - 8 | Q 7.1 | Page 148

Name a black metallic oxide which reacts with hydrochloric acid to give a coloured solution.

Exercise - 8 | Q 7.2 | Page 148

Name two colourless gases, which when mixed produce a white solid.

Exercise - 8 | Q 7.3 | Page 148

Name two gases which chemically combine to form a liquid.

Exercise - 8 | Q 7.4 | Page 148

Name a chloride which is solube in excess of ammonium hydroxide

Exercise - 8 | Q 7.5 | Page 148

Name the chemical in which gold can be dissolved.

Exercise - 8 | Q 7.6 | Page 148

Name the experiment which demonstrates that hydrogen chloride is soluble in water.

Exercise - 8 | Q 7.7 | Page 148

Name the gas produced when chlorine water is exposed to sunlight.

Exercise - 8 | Q 8 | Page 148

Solution A reacts with an acid B (which gives greenish yellow gas on reacting with oxidizing agents like Pb3O4 )to give white precipitate C insoluble in nitric acid but soluble in ammonium hydroxide. Name A, B and C.

Exercise - 8 | Q 9.1 | Page 148

Complete and balance the following reaction, state whether dilute or conc. acid is used.

NH4OH + HCl ⟶

Exercise - 8 | Q 9.2 | Page 148

Complete and balance the following reaction, state whether dilute or conc. acid is used.
NaHSO3 + HCl ⟶

Exercise - 8 | Q 9.3 | Page 148

Complete and balance the following reaction, state whether dilute or conc. acid is used.

Pb(NO3)2 +HCl ⟶

Exercise - 8 | Q 9.4 | Page 148

Complete and balance the following reaction, state whether dilute or conc. acid is used.
Pb3O4 + HCl ⟶

Exercise - 8 | Q 10.1 | Page 148

How will the action of dilute hydrochloric acid enable you to distinguish between Sodium carbonate and sodium sulphite.

Exercise - 8 | Q 10.2 | Page 149

How will the action of dilute hydrochloric acid enable you to distinguish between sodium thiosulphate and sodium sulphite.

Exercise - 8 | Q 11 | Page 148

Give three distinct test [apart from using an indicator] you would carry out with solution of HCl to illustrate the typical properties of an acid.

Exercise - 8 | Q 12 | Page 148

MnO2, PbO2 and red lead react with conc. HCl acid liberates Cl2.
What is the common property being shown by these metal oxides?

Exercise - 8 | Q 13 | Page 148

State which of the two - a solution of HCl in water or in toluene is an electrolyte. Explain.

Exercise - 8 | Q 14.1 | Page 148

Convert two soluble metallic nitrates to insoluble metallic chlorides using dil. HCl.

Exercise - 8 | Q 14.2 | Page 148

Convert hydrochloric acid to nascent chlorine.

Exercise - 8 | Q 15 | Page 148

A solution of hydrogen chloride in water is prepared. The following substances are added to separate portions of the solution :

S.NO. Substance added Gas evolved Odour
1 Calcium carbonate _________ _________
2 Magnesium ribbon _________ _________
3 Manganese (IV) oxide with heating _________ _________
4 Sodium sulphide _________ _________
Exercise - 8 | Q 16 | Page 149

State the composition of aqua regia. State which component is the oxidizing agent in aqua regia.

Exercise - 8 | Q 17.1 | Page 149

Write an equation for the reaction of hydrochloric acid on the silver nitrate solution.

Exercise - 8 | Q 17.2 | Page 149

Write an equation for the reaction of hydrochloric acid on magnesium foil.

Exercise - 8 | Q 17.3 | Page 149

Write an equation for the reaction of hydrochloric acid on caustic soda solution.

Exercise - 8 | Q 17.4 | Page 149

Write an equation for the reaction of hydrochloric acid on zinc carbonate.

Exercise - 8 | Q 17.5 | Page 149

Write an equation for the reactions of hydrochloric acid on manganese (IV) oxide

Exercise -8 | Q 17.6 | Page 149

Write an equation for the reaction of hydrochloric acid on copper oxide.

Exercise - 8 | Q 18 | Page 149

Study the flow chart and give balanced equations with conditions for the conversions A, B, C and D.

Exercise - 8 | Q 19.1 | Page 149

Write the balanced equation for the reaction of dilute hydrochloric acid with the following: Iron

Exercise - 8 | Q 19.2 | Page 149

Write the balanced equation for the reaction of dilute hydrochloric acid with the following: Sodium hydrogen carbonate

Exercise - 8 | Q 19.3 | Page 149

Write the balanced equation for the reaction of dilute hydrochloric acid with the following: Iron(II) sulphide

Exercise - 8 | Q 19.4 | Page 149

Write the balanced equation for the reaction of dilute hydrochloric acid with the following: magnesium sulphite

Exercise - 8 | Q 20.1 | Page 149

Write observation :

Lead nitrate solution is mixed with dilute hydrochloric acid and heated.

Exercise - 8 | Q 20.2 | Page 149

Write observation :

A small piece of zinc is added to dilute hydrochloric acid.

Exercise - 8 | Q 21.1 | Page 149

Choose the correct answer from the options given below : 
The drying agent used to dry HCl gas is : 

  • Conc. H2SO

  •  ZnO

  • Al2O

  •  CaO

Exercise - 8 | Q 21.2 | Page 149

When sodium chloride is heated with concentrated sulphuric acid below 200°C, one of the products formed is ________ .

  • sodium hydrogen sulphate

  • sodium sulphate

  • Chlorine

Chapter 8: Study of Compounds - Hydrogen Chloride

Exercise - 8Exercise -8
Concise Chemistry Class 10 ICSE - Shaalaa.com

Selina solutions for Concise Chemistry Class 10 ICSE chapter 8 - Study of Compounds - Hydrogen Chloride

Selina solutions for Concise Chemistry Class 10 ICSE chapter 8 (Study of Compounds - Hydrogen Chloride) include all questions with solution and detail explanation. This will clear students doubts about any question and improve application skills while preparing for board exams. The detailed, step-by-step solutions will help you understand the concepts better and clear your confusions, if any. Shaalaa.com has the CISCE Concise Chemistry Class 10 ICSE solutions in a manner that help students grasp basic concepts better and faster.

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Concepts covered in Concise Chemistry Class 10 ICSE chapter 8 Study of Compounds - Hydrogen Chloride are Hydrogen Chloride - Acidic Properties of Its Solution, Hydrogen Chloride - Reaction with Ammonia, Hydrogen Chloride - Density and Solubility of Hydrogen Chloride (Fountain Experiment), Hydrogen Chloride - Preparation of Hydrogen Chloride from Sodium Chloride, Concept of Hydrogen Chloride, Method of Preparation of Hydrochloric Acid, Precipitation Reactions with Silver Nitrate Solution and Lead Nitrate Solution.

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