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Frank solutions for Class 10 Chemistry chapter 10 - Study of Sulphur Compound: Sulphuric Acid

Chapter 10: Study of Sulphur Compound: Sulphuric Acid

Exercise

Frank solutions for Class 10 Chemistry Chapter 10 Exercise [Page 249]

Exercise | Q 1 | Page 249

How does sulphuric acid occur in nature?

Exercise | Q 2 | Page 249

Describe the theory of manufacture of sulphuric acid by contact process, with all the necessary conditions (No technical details are required but equations should be given for each stage of process).

Exercise | Q 3.1 | Page 249

Define the following term:
Constant boiling mixture

Exercise | Q 3.2 | Page 249

Define the following term : Hygroscopic substance

Exercise | Q 3.3 | Page 249

Define the following term : Oleum

Exercise | Q 3.4 | Page 249

Define the following term : Dehydrating agent

Exercise | Q 4.1 | Page 249

Name the following:
Products obtained by dissolving sulphur dioxide and chlorine in water.

Exercise | Q 4.2 | Page 249

Name the following:
The catalyst used in the constant process.

Exercise | Q 4.3 | Page 249

Name the following:
Solution obtained by dissolving sulphur trioxide in 98% sulphuric acid.

Exercise | Q 4.4 | Page 249

Name the following:
Products obtained by treating zinc with dilute sulphuric acid.

Exercise | Q 4.5 | Page 249

Name the following:
Products obtained by treating ferrous sulphide with dilute sulphuric acid.

Exercise | Q 4.6 | Page 249

Name the following :
The precipitate obtained by treating aqueous lead nitrate with dilute sulphuric acid.

Exercise | Q 4.7 | Page 249

Name the following:
The precipitate obtained by treating aqueous barium chloride with dilute sulphuric acid.

Exercise | Q 4.8 | Page 249

Name the following:
The precipitate obtained by treating carbon with hot concentrated sulphuric acid.

Exercise | Q 4.9 | Page 249

Name the Following:
The property used to prepare HCl and HNO3 from H2SO4.

Frank solutions for Class 10 Chemistry Chapter 10 Exercise [Pages 250 - 251]

Exercise | Q 1.1 | Page 250

What would you observe in the following case?
Sulphur trioxide is dissolved in water on a large scale.

Exercise | Q 1.2 | Page 250

What would you observe in the following case?
Concentrated sulphuric acid is added to equal volumes of cold water.

Exercise | Q 1.3 | Page 250

What would you observe in the following case?
100ml of 98% sulphuric acid is kept open.

Exercise | Q 1.4 | Page 250

What would you observe in the following case?
Hot concentrated sulphuric acid is added to sodium chloride crystals.

Exercise | Q 1.5 | Page 250

What would you observe in the following case?
Dilute sulphuric acid is added to ferrous sulphate solution.

Exercise | Q 2.01 | Page 250

Give reason for the following:
In the contact process, sulphur dioxide is dissolved in 98% sulphuric acid and not in water.

Exercise | Q 2.02 | Page 250

Give reason for the following:
When solution of sulphur dioxide is exposed to air, it gets converted to sulphuric acid.

Exercise | Q 2.03 | Page 250

Give reason for the following:
When diluting concentrated sulphuric acid, the acid should be added to water and not water to the acid.

Exercise | Q 2.04 | Page 250

Give reason for the following:
When concentrated sulphuric acid is exposed to air, its volume increases and it becomes slightly dilute.

Exercise | Q 2.05 | Page 250

Give reason for the following:
Sulphuric acid can form two kinds of salts with sodium chloride.

Exercise | Q 2.06 | Page 250

Give reason for the following:
When barium chloride is added to dilute sulphuric acid, a white precipitate is formed.

Exercise | Q 2.07 | Page 250

Give reason for the following:
When carbon is heated with concentrated sulphuric acid, carbon dioxide is formed.

Exercise | Q 2.08 | Page 250

Give reason for the following:
Ammonia gas cannot be dried by passing through concentrated sulphuric acid.

Exercise | Q 2.09 | Page 250

Give reason for the following:
When concentrated sulphuric acid is added to sugar/glucose, a black mass is left behind.

Exercise | Q 2.1 | Page 250

Give reason for the following:
Concentrated sulphuric acid should not be added to oxalic acid or formic acid in the open laboratory.

Exercise | Q 2.11 | Page 250

Give reason for the following:
When concentrated sulphuric acid is added to blue crystalline copper sulphate, it turns powdery white.

Exercise | Q 2.12 | Page 250

Give reason for the following:
Concentrated sulphuric acid must be stored in airtight bottles.

Exercise | Q 2.13 | Page 250

Give reason for the following:
Cotton clothes get burnt with concentrated sulphuric acid.

Exercise | Q 2.14 | Page 250

Give reason for the following:
H2SO4 cannot be prepared by heating sodium sulphate with conc. HCl or HNO3

Exercise | Q 3.1 | Page 250

How are the following conversions brought about? Give equation and condition:
Sulphur trioxide to sulphur acid.

Exercise | Q 3.2 | Page 250

How are the following conversion brought about? Give equation and condition:
Sulphur trioxide to oleum.

Exercise | Q 3.3 | Page 250

How are the following conversion brought about? Give equation and condition:
Dilute sulphuric acid to hydrogen.

Exercise | Q 3.4 | Page 250

How are the following conversion brought about? Give equation and condition:
Aqueous barium chloride to barium sulphate.

Exercise | Q 3.5 | Page 250

How are the following conversion brought about? Give equation and condition:

Exercise | Q 3.6 | Page 250

How are the following conversion brought about? Give equation and condition:
Sodium chloride to hydrogen chloride.

Exercise | Q 3.7 | Page 250

How are the following conversion brought about? Give equation and condition:
Sucrose to sugar charcoal.

Exercise | Q 3.8 | Page 250

How are the following conversion brought about? Give equation and condition:
Oxalic acid to carbon monoxide.

Exercise | Q 4.1 | Page 250

Describe the reaction that show
Concentrated sulphuric acid is a non-volatile acid.

Exercise | Q 4.2 | Page 250

Describe the reaction that show
Concentrated sulphuric acid is a dehydrating agent.

Exercise | Q 4.3 | Page 250

Describe the reaction that show
Concentrated sulphuric acid behaves as oxidizing agent.

Exercise | Q 4.4 | Page 250

Describe the reaction that show
Dilute sulphuric acid behaves as dibasic acid.

Exercise | Q 5 | Page 251

The following statement is correct only under certain conditions. Rewrite the statement including the appropriate conditions.
Oxalic acid reacts with sulphuric acid to produce carbon monoxide and carbon dioxide.

Exercise | Q 5 | Page 250

Why is sulphuric acid known as king of chemicals and oil vitriol ?

Exercise | Q 6.1 | Page 250

Give examples of the use of sulphuric acid as
An electrolyte in everyday use

Exercise | Q 6.2 | Page 250

Give examples of the use of sulphuric acid as
Non-volatile acid

Exercise | Q 6.3 | Page 250

Give examples of the use of sulphuric acid as
An oxidizing agent

Exercise | Q 7.1 | Page 250

How will you distinguish between dilute H2SO4 and conc. H2SO4 ?

Exercise | Q 7.2 | Page 250

How will you distinguish between conc. HCl and conc. H2SO4?

Exercise | Q 7.3 | Page 250

Give main difference between drying agent and dehydrating agent.

Frank solutions for Class 10 Chemistry Chapter 10 Exercise [Page 251]

Exercise | Q 1.1 | Page 251

Choose the current answer from the options given below :
In the preparation of H2SOby contact process V2O3 is used as a catalyst in the reaction. It is

• S + O2→ SO2

• SO2 + H2SO4→ H2S2O7

• SO+ H2O → H2SO4

• 2SO2 + O2→ 2SO3

Exercise | Q 1.2 | Page 251

Choose the current answer from the options given below :
When conc. H2SO4 comes in contact with sugar, it becomes black due to

• Hydrolysis

• Decolourisation

• Dehydration

• Hydration

Exercise | Q 1.3 | Page 251

Choose the current answer from the options given below :
Which of the following gas dissolves in H2SO4 to give alum?

• SO2

• H2S

• S2O

• SO3

Exercise | Q 1.4 | Page 251

Choose the current answer from the options given below :
In the contact process, the impurities of arsenic are removed by

• Fe2O3

• Fe(OH)3

• AlCOH3

• Cr(OH)3

Exercise | Q 1.5 | Page 251

Choose the current answer from the options given below :
The catalyst used for the oxidation of SO2 to SOin contact process is

• Finally divided iron

• Molybdenum

• Nitric oxide

Exercise | Q 2.1 | Page 251

Fill in the blank with appropriate word/words :
The catalyst used in contact process for the manufacture of H2SOis ___________ or _________.

Exercise | Q 2.2 | Page 251

Fill in the blank with appropriate word/words :
For the reaction SO2 + O2⇌ SO3 + Heat, the favourable conditions are _________ and __________.

Exercise | Q 2.3 | Page 251

Fill in the blank with appropriate word/words :
Oil of Vitriol is ___________

Exercise | Q 3 | Page 251

Give reason for the following:
Concentrated sulphuric acid is kept in airtight bottles.

Exercise | Q 4 | Page 251

Name the anion [negative ion] present in the following compound:
Compound D when warmed with dilute H2SO4 gives a gas which turns acidified potassium dichromate solution green.

Exercise | Q 6.1 | Page 251

What is the purpose of the contact process?

Exercise | Q 6.2 | Page 251

Name the two gases that are combined during the contact process.

Exercise | Q 6.3 | Page 251

Name the catalyst used in the process.

Exercise | Q 6.4 | Page 251

Write the equation for the reaction between zinc and the final product of the contact process.

Exercise | Q 7 | Page 251

Name two other acids other than sulphuric acid, which can be prepared by using sulphuric acid.

Exercise | Q 8 | Page 251

In using sulphuric acid to prepare other acids, as mentioned above, which property of sulphuric acid is used ?

Frank solutions for Class 10 Chemistry Chapter 10 Exercise [Page 252]

Exercise | Q 1.1 | Page 252

Sulphuric acid can be used to prepare a number of gases in the laboratory. Write balanced equation for the reaction from which the folllowing gas are obtained, using dilute sulphuric acid as one of the reactant : Hydrogen

Exercise | Q 1.2 | Page 252

Sulphuric acid can be used to prepare a number of gases in the laboratory. Write balanced equation for the reaction from which the folllowing gas are obtained, using dilute sulphuric acid as one of the reactant : Carbon dioxide

Exercise | Q 1.3 | Page 252

Sulphuric acid can be used to prepare a number of gases in the laboratory. Write balanced equation for the reaction from which the folllowing gas are obtained, using dilute sulphuric acid as one of the reactant : Sulphur dioxide

Exercise | Q 2 | Page 252

What would you see, when a crystal of CuSO4.5H2O is placed in concentrated sulphuric acid? Give reason to explain your observation.

Exercise | Q 3 | Page 252

Write balanced equations for the three chemical reactions that take place during the conversion of sulphur dioxide to sulphuric acid in the contact process. Name the catalyst used in the contact process.

Exercise | Q 4 | Page 252

What do you observe when barium chloride solution is added to dilute sulphuric acid ?

Exercise | Q 5 | Page 252

Write balanced equation for the reaction between iron and dilute sulphuric acid.

Exercise | Q 6 | Page 252

Name the oxide of sulphur which reacts water to give sulphuric acid.
In the contact process, the direct reaction between oxide of sulphur and water is avoided. In this process what does the oxide of sulphur react with instead of water, and what is the name of the product?

Exercise | Q 7.1 | Page 252

Write balanced equation for the reaction of dilute sulphuric acid with the following:
Copper carbonate

Exercise | Q 7.2 | Page 252

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

Exercise | Q 7.3 | Page 252

Write balanced equation for the reaction of dilute sulphuric acid with the following:
Zinc hydroxide

Exercise | Q 8 | Page 252

In this question, you required to supply the word (or words) that will make the sentence correct. Rewrite the copper statement.
Copper sulphate crystals are dehydrate by sulphuric acid.

Exercise | Q 9 | Page 252

Write balanced chemical equation for the reaction between zinc and dilute sulphuric acid.
(i) What is the purpose of the contact process ?
(ii) Name the catalyst used in the contact process.
(iii) Write the balanced equation for the reaction in the contact process, which takes place in the presence of catalyst.

Exercise | Q 10 | Page 252

What do you see when concentrated sulphuric acid is added to copper sulphate-5-water ( You are not required to say what is happing, nor is it necessary to name the products.)

Exercise | Q 11 | Page 252

Copy and complete the following table.
Column 3 has the names of gases to be prepared using the substance you enter in column 1, along with dilute or concentrated sulphuric acid, as indicated in column 2.

 Column 1 Column 2 Column 3 Substance reacted with acid Dilute or concentrated sulphuric acid Gas Hydrogen Carbon dioxide Only chlorine

Write the equation for the laboratory preparation of :
(i) Sodium sulphate using dilute sulphuric acid.
(ii) Lead sulphate using dilute sulphuric acid.

Frank solutions for Class 10 Chemistry Chapter 10 Exercise [Page 253]

Exercise | Q 1 | Page 253

Which concentrated acid oxidizes sulphur directly to sulphuric acid ? Write the equation for the same. What is the name of the process by which sulphuric acid is manufactured ? Name the catalyst used in the process.

Exercise | Q 2 | Page 253

Complete the following sentence, choosing the correct word from the given options.
"Concentrated sulphuric acid is used in the laboratory preparation of nitric acid and hydrochloric acid because it is ____________ in comparison to these two acids."

• less volatile

• stronger

Exercise | Q 3.1 | Page 253

Write the equation for the laboratory preparation of the following salts, using sulphuric acid.
Iron (II) sulphate from iron.

Exercise | Q 3.2 | Page 253

Write the equation for the laboratory preparation of the following salts, using sulphuric acid.
Copper sulphate from copper.

Exercise | Q 3.3 | Page 253

Write the equation for the laboratory preparation of the following salts, using sulphuric acid.

Exercise | Q 3.4 | Page 253

Write the equation for the laboratory preparation of the following salts, using sulphuric acid.
Sodium Sulphate from sodium carbonate.

Exercise | Q 4 | Page 253

(i) Name the catalyst which helps in the conversion of sulphur dioxide to sulphur trioxide in step C.

(ii) In the contact process for the manufacture of sulphuric acid, sulphur trioxide is not converted to sulphuric acid by reacting it with water. Instead a two-step procedure is used. Write the equations for the two steps involved in D.

(iii) What type of substance will liberate sulphur dioxide from sodium sulphite in step E?

(iv) Write the equation for the reaction by which sulphur dioxide is converted to sodium sulphite in step F ?

Exercise | Q 5 | Page 253

Write balanced equation for potassium hydrogen carbonate and dilute sulphuric acid.

Exercise | Q 6 | Page 253

A, B, C and D summarize the properties of sulphuric acid depending on whether it is dilute or concentrated. Choose the property (A, B, C or D), depending on which is relevant to each of the preparations (i) to (ii).
A. Dilute acid (typical acid properties)
B. Non-volatile acid
C. Oxidizing agent
D. Dehydrating agent

(i) Preparation of hydrogen chloride.
(ii) Preparation of ethane from ethanol
(iii) Preparation of copper sulphate from copper oxide.

Frank solutions for Class 10 Chemistry Chapter 10 Exercise [Page 254]

Exercise | Q 1.1 | Page 254

Name the process used for the large scale manufacture of sulphuric acid.

Exercise | Q 1.2 | Page 254

Which property of sulphuric acid accounts for its use as a dehydrating agent ?

Exercise | Q 1.3 | Page 254

Concentrated sulphuric acid is both an oxidizing agent and a non-volatile acid. Write one equation each to illustrate the properties of sulphuric acid mentioned above.

Exercise | Q 2.1 | Page 254

Write the balanced chemical equation for the following conversion:

Exercise | Q 2.2 | Page 254

Write the balanced chemical equation for the following conversion:
Copper sulphate from copper and concentrated sulphuric acid.

Exercise | Q 2.3 | Page 254

Write the balanced chemical equation for the following conversion:
Ammonium sulphate from ammonia and dilute sulphuric acid.

Exercise | Q 3 | Page 254

Some properties of sulphuric acid are listed below. Choose the property A, B, C or D which is responsible for the reaction (a) to (e). Some properties may be repeated.
A. Acid
B. Dehydrating agent
C. Non-volatile acid
D. Oxidizing agent

(a) $\ce{C12H22O11 + nH2SO4 -> 12C + 11H2O + nH2SO4}$
(b) $\ce{S + 2H2SO4 -> 3SO2 + 2H2O}$
(c) $\ce{NaCl + 2H2SO4 -> NaHSO4 + HCl}$
(d) $\ce{CuO + 2H2SO4 -> CuSO4 + H2O}$
(e) $\ce{Na2CO3 + H2SO4 -> Na2SO4 + H2O + CO2}$

Exercise | Q 4.1 | Page 254

HCl, HNO3 and H2SO4 are formulae of three compounds. Which of these compounds has the highest boiling point and which has the lowest?

Exercise | Q 4.2 | Page 254

Dilute hydrochloric acid and dilute sulphuric acid are both colourless solutions. How will the addition of barium chloride solution to each help to distinguish between the two?

Exercise | Q 5 | Page 254

Dilute Sulphuric acid will produce a white precipitate when added to a solution of :

• Copper nitrate

• Zinc nitrate

• Sodium nitrate

Exercise | Q 6 | Page 254

Making use only of substances chosen from those given below:
Dilute sulphuric acid
Sodium carbonate
Zinc
Sodium sulphite
Salcium carbonate

Give the equation for the reaction by which you could obtain:
(i) Hydrogen
(ii) Sulphur dioxide
(iii) Carbon dioxide
(iv) Zinc Carbonate (two steps required).

Frank solutions for Class 10 Chemistry Chapter 10 Exercise [Page 255]

Exercise | Q 1 | Page 255

Name the gas evolved in following case:
The gas produced by the action of concentrated sulphuric acid on sodium chloride.

Exercise | Q 2.1 | Page 255

Write the equation of the following reaction :
Sulphur is heated with concentrated sulphuric acid

Exercise | Q 2.2 | Page 255

Write the equation of the following reaction :
Concentrated sulphuric acid is poured over sugar

Exercise | Q 3.1 | Page 255

State your observation for the following case :
Moist blue litmus is introduced into a gas jar of sulphur dioxide.

Exercise | Q 3.2 | Page 255

State your observation for the following case :
Dry red rose petals are placed in the jar of sulphur dioxide.

Exercise | Q 3.3 | Page 255

State your observation for the following case :
Paper soaked in potassium permanganate solution is introduced into a gas jar of sulphur diaoxide.

Exercise | Q 4 | Page 255

What would you observe in the following case :
Sugar crystals are added to hard glass test tube containing concentrated sulphuric acid.

Exercise | Q 5.1 | Page 255

With the help of equations, give an outline for the manufacture of sulphuric acid by the contact process.

Exercise | Q 5.2 | Page 255

What property of sulphuric acid is shown by the reaction of concentrated sulphuric acid when heated with :
(i) Potassium nitrate
(ii) carbon

Exercise | Q 6 | Page 255

In the given equation identify the role played by concentrated sulphuric acid S + 2H2SO4→ 3SO2 + 2H2O

• Non-volatile acid

• Oxidising agent

• Dehydrating agent

• None of the above

Exercise | Q 7.1 | Page 255

State one appropriate observation of the following:
Concentrated sulphuric acid is added dropwise to a crystal of hydrated copper sulphate.

Exercise | Q 7.2 | Page 255

State one appropriate observation of the following:
Dehydration of Concentrated Sulphuric acid with sugar crystals

Exercise | Q 8.1 | Page 255

Give one equation to show the following properties of sulphuric acid : Dehydrating property

Exercise | Q 8.2 | Page 255

Give one equation to show the following properties of sulphuric acid : Acidic nature

Exercise | Q 8.3 | Page 255

Give one equation to show the following properties of sulphuric acid : As a non-volatile acid

Exercise | Q 9.1 | Page 255

Give balanced chemical equation for the action of sulphuric acid of the following : Sulphur

Exercise | Q 9.1 | Page 255

Give balanced chemical equation for the action of sulphuric acid of the following :
Potassium hydrogen carbonate

Exercise | Q 9.2 | Page 255

In the contact process for the manufacture of sulphuric acid give the equations for the conversion of sulphur trioxide to sulphuric acid.

Frank solutions for Class 10 Chemistry Chapter 10 Exercise [Page 256]

Exercise | Q 1 | Page 256

A, B, C and D summarise the properties of sulphuric acid depending on whether it is dilute or concentrated.
A = Typical acid property
B = Non-Volatile acid
C = Oxidising agent
D = Dehydrating agent

Choose the property (A, B, C or D) depending on which is relevant to each of the following :
(i) Preparation of hydrogen chloride gas
(ii) Preparation of copper sulphate from copper oxide
(iii) Action of cone, sulphuric acid on sulphur

Exercise | Q 2.1 | Page 256

Write balanced chemical equation to show :
The oxidizing action of conc.sulphuric acid on carbon

Exercise | Q 2.2 | Page 256

Write balanced chemical equation to show :
The behavior of H2SO4 as an acid when it reacts with magnesium.

Exercise | Q 2.3 | Page 256

Write balanced chemical equation to show :
The dehydrating property of conc.sulphuric acid

Exercise

Frank solutions for Class 10 Chemistry chapter 10 - Study of Sulphur Compound: Sulphuric Acid

Frank solutions for Class 10 Chemistry chapter 10 (Study of Sulphur Compound: Sulphuric Acid) 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 Frank Class 10 Chemistry Part 2 solutions in a manner that help students grasp basic concepts better and faster.

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Concepts covered in Class 10 Chemistry chapter 10 Study of Sulphur Compound: Sulphuric Acid are Non-volatile Nature of Sulphuric Acid, Sulphuric Acid-manufacture by Contact Process, Concept of Sulphuric Acid, Sulphuric Acid - Behaviour as an Acid When Dilute, Sulphuric Acid - Oxidizing Agent When Concentrated, Sulphuric Acid - Dehydrating Agent.

Using Frank Class 10 solutions Study of Sulphur Compound: Sulphuric Acid exercise by students are an easy way to prepare for the exams, as they involve solutions arranged chapter-wise also page wise. The questions involved in Frank Solutions are important questions that can be asked in the final exam. Maximum students of CISCE Class 10 prefer Frank Textbook Solutions to score more in exam.

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