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NCERT solutions for Class 10 Science Textbook chapter 2 - Acids, Bases and Salts [Latest edition]

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Class 10 Science Textbook - Shaalaa.com

Chapter 2: Acids, Bases and Salts

[Page 18]

NCERT solutions for Class 10 Science Textbook Chapter 2 Acids, Bases and Salts [Page 18]

Q 1 | Page 18

You have been provided with three test tubes. One of them contains distilled water and the other two contain an acidic solution and a basic solution, respectively. If you are given only red litmus paper, how will you identify the contents of each test tube?

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[Page 22]

NCERT solutions for Class 10 Science Textbook Chapter 2 Acids, Bases and Salts [Page 22]

Q 1 | Page 22

 Why should curd and sour substances not be kept in brass and copper vessels?

Q 2 | Page 22

Which gas is usually liberated when an acid reacts with a metal? Illustrate with an example. How will you test for the presence of this gas?

Q 3 | Page 22

Metal compound A reacts with dilute hydrochloric acid to produce effervescence. The gas evolved extinguishes a burning candle. Write a balanced chemical equation for the reaction if one of the compounds formed is calcium chloride.

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[Page 25]

NCERT solutions for Class 10 Science Textbook Chapter 2 Acids, Bases and Salts [Page 25]

Q 1 | Page 25

 Why do HCl, HNO3, etc., show acidic characters in aqueous solutions while solutions of compounds like alcohol and glucose do not show acidic character?

Q 2 | Page 25

 Why does an aqueous solution of an acid conduct electricity?

Q 3 | Page 25

Why does dry HCl gas not change the colour of the dry litmus paper?

Q 4 | Page 25

While diluting an acid, why is it recommended that the acid should be added to water and not water to the acid?

Q 5 | Page 25

How is the concentration of hydronium ions (H3O+) affected when a solution of an acid is diluted?

Q 6 | Page 25

How is the concentration of hydroxide ions (OH) affected when excess base is dissolved in a solution of sodium hydroxide?

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[Page 33]

NCERT solutions for Class 10 Science Textbook Chapter 2 Acids, Bases and Salts [Page 33]

Q 1 | Page 33

What is the common name of the compound CaOCl2?

Q 2 | Page 33

 Name the substance which on treatment with chlorine yields bleaching powder?

Q 3 | Page 33

Name the sodium compound which is used for softening hard water

Q 4 | Page 33

What will happen if a solution of sodium hydrocarbonate is heated? Give the equation of the reaction involved.

Q 5 | Page 33

Write an equation to show the reaction between Plaster of Paris and water

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[Pages 34 - 35]

NCERT solutions for Class 10 Science Textbook Chapter 2 Acids, Bases and Salts [Pages 34 - 35]

Q 1 | Page 34

A solution turns red litmus blue, its pH is likely to be

  • 1

  • 4

  • 5

  • 10

Q 2 | Page 34

A solution reacts with crushed egg-shells to give a gas that turns lime-water milky. The solution contains

  • NaCl

  • HCl

  • LiCl

  • KCl

Q 3 | Page 34

10 mL of a solution of NaOH is found to be completely neutralised by 8 mL of a given solution of HCl. If we take 20 mL of the same solution of NaOH, the amount of HCl solution (the same solution as before) required to neutralise it will be

  • 4 mL

  • 8mL

  • 12 mL

  • 16 mL

Q 5.1 | Page 34

Write word equations and then balanced equations for the reaction taking place when dilute sulphuric acid reacts with zinc granules

Q 5.2 | Page 34

Write word equations and then balanced equations for the reaction taking place when − dilute hydrochloric acid reacts with magnesium ribbon.

Q 5.3 | Page 34

Write word equations and then balanced equations for the reaction taking place when dilute sulphuric acid reacts with aluminium powder

Q 5.4 | Page 34

Write word equation and then balanced equation for the reaction taking place when dilute hydrochloric acid reacts with iron filings.

Q 6 | Page 34

Compounds such as alcohols and glucose also contain hydrogen but are not categorized as acids. Describe an activity to prove it.

Q 7 | Page 34

Why does distilled water not conduct electricity, whereas rain water does?

Q 8 | Page 35

Why do acids not show acidic behaviour in the absence of water?

Q 10 | Page 35

Equal lengths of magnesium ribbons are taken in test tubes A and B. Hydrochloric acid (HCl) is added to test tube A, while acetic acid (CH3COOH) is added to test tube B. In which test tube will the fizzing occur more vigorously and why?

Q 13 | Page 35

 Plaster of Paris should be stored in a moisture-proof container. Explain why?

Q 15.1 | Page 35

Give two important uses of washing soda

Q 15.2 | Page 35

Give two important uses of  baking soda.

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Chapter 2: Acids, Bases and Salts

Class 10 Science Textbook - Shaalaa.com

NCERT solutions for Class 10 Science Textbook chapter 2 - Acids, Bases and Salts

NCERT solutions for Class 10 Science Textbook chapter 2 (Acids, Bases and Salts) 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 CBSE Class 10 Science Textbook solutions in a manner that help students grasp basic concepts better and faster.

Further, we at Shaalaa.com provide such solutions so that students can prepare for written exams. NCERT textbook solutions can be a core help for self-study and acts as a perfect self-help guidance for students.

Concepts covered in Class 10 Science Textbook chapter 2 Acids, Bases and Salts are Concept of Acid and Its Properties, Concept of Base, Acid and Base Indicator, Chemical Properties of Acids and Bases, Reaction of Acids and Bases with Metals, Reaction of Acids with Metal Carbonates and Hydrogencarbonates, Reaction of Metallic Oxides with Acids, Reaction of a Non-metallic Oxide with Base, Acids and Bases React with Each Other, Acid Or a Base in a Water Solution, Strength of Acids and Bases, Concept of Salts, Ph of Salts, Chemicals from Common Salt, Preparation and Uses of Sodium Hydroxide, Preparation and Uses of Bleaching Powder, Preparation and Uses of Baking Soda, Preparation and Uses of Washing Soda, Preparation and Uses of Plaster of Paris, Concept of Acid and Its Properties, Concept of Base, Acid and Base Indicator, Chemical Properties of Acids and Bases, Reaction of Acids and Bases with Metals, Reaction of Acids with Metal Carbonates and Hydrogencarbonates, Reaction of Metallic Oxides with Acids, Reaction of a Non-metallic Oxide with Base, Acids and Bases React with Each Other, Acid Or a Base in a Water Solution, Strength of Acids and Bases, Concept of Salts, Ph of Salts, Chemicals from Common Salt, Preparation and Uses of Sodium Hydroxide, Preparation and Uses of Bleaching Powder, Preparation and Uses of Baking Soda, Preparation and Uses of Washing Soda, Preparation and Uses of Plaster of Paris.

Using NCERT Class 10 solutions Acids, Bases and Salts 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 NCERT Solutions are important questions that can be asked in the final exam. Maximum students of CBSE Class 10 prefer NCERT Textbook Solutions to score more in exam.

Get the free view of chapter 2 Acids, Bases and Salts Class 10 extra questions for Class 10 Science Textbook and can use Shaalaa.com to keep it handy for your exam preparation

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