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Acids, Bases and Salts

Each subtopic includes About section, revision page link, 10 preview questions, and practice CTAs.

Definitions and general properties

Subtopic

Definitions and general properties under Acids, Bases and Salts for Grade 10 CBSE.

About Topic & Revision

Preview questions (no answers)

  1. 1.

    When CO2CO_2 gas is passed through lime water in excess, the milkiness disappears due to the formation of:

    A.

    CaCO3CaCO_3

    B.

    Ca(OH)2Ca(OH)_2

    C.

    Ca(HCO3)2Ca(HCO_3)_2

    D.

    CaOCaO

  2. 2.

    Which of the following is used as an indicator to distinguish between an acid and a base?

    A.

    Sodium chloride

    B.

    Methyl orange

    C.

    Calcium carbonate

    D.

    Water

  3. 3.

    What is the pH range of basic solutions?

    A.

    0 to 7

    B.

    Exactly 7

    C.

    Above 7 to 14

    D.

    Below 0

Download the worksheet for Acids, Bases and Salts - Definitions and general properties to practice offline. It includes additional chapter-level practice questions.

Concept of pH scale

Subtopic

Concept of pH scale under Acids, Bases and Salts for Grade 10 CBSE.

About Topic & Revision

Preview questions (no answers)

  1. 1.

    At 25∘C25^\circ C, the sum of pH and pOH of any aqueous solution is always:

    A.

    7

    B.

    0

    C.

    14

    D.

    10

  2. 2.

    Distilled water should have a pH of approximately:

    A.

    0

    B.

    7

    C.

    14

    D.

    5.6

  3. 3.

    If a solution has a pH of 1, it means the concentration of H+H^+ ions is:

    A.

    10−110^{-1} mol/L

    B.

    10−1410^{-14} mol/L

    C.

    10110^{1} mol/L

    D.

    10−710^{-7} mol/L

Download the worksheet for Acids, Bases and Salts - Concept of pH scale to practice offline. It includes additional chapter-level practice questions.

Importance of pH in everyday life

Subtopic

Importance of pH in everyday life under Acids, Bases and Salts for Grade 10 CBSE.

About Topic & Revision

Preview questions (no answers)

  1. 1.

    On the pH scale, a value of 7 represents a neutral solution. Values from 0 to 7 represent _____ solutions and 7 to 14 represent _____ solutions.

    A.

    basic, acidic

    B.

    acidic, basic

    C.

    neutral, acidic

    D.

    basic, neutral

  2. 2.

    Which of the following is the most acidic substance listed?

    A.

    Saliva

    B.

    Blood

    C.

    Gastric juice

    D.

    Milk

  3. 3.

    If a farmer finds that the pH of the soil is 4.5, what is the nature of the soil?

    A.

    Basic

    B.

    Acidic

    C.

    Neutral

    D.

    Alkaline

Download the worksheet for Acids, Bases and Salts - Importance of pH in everyday life to practice offline. It includes additional chapter-level practice questions.

Preparation and uses of Sodium Hydroxide, Bleaching powder, Baking soda, Washing soda and Plaster of Paris

Subtopic

Preparation and uses of Sodium Hydroxide, Bleaching powder, Baking soda, Washing soda and Plaster of Paris under Acids, Bases and Salts for Grade 10 CBSE.

About Topic & Revision

Preview questions (no answers)

  1. 1.

    What is the common name of Calcium sulphate hemihydrate?

    A.

    Gypsum

    B.

    Bleaching powder

    C.

    Plaster of Paris

    D.

    Washing soda

  2. 2.

    Which gas is evolved when washing soda is treated with an acid?

    A.

    Hydrogen

    B.

    Chlorine

    C.

    Carbon dioxide

    D.

    Oxygen

  3. 3.

    The production of sodium hydroxide is called the 'chlor-alkali' process because the products are:

    A.

    Chlorine and an acid

    B.

    Chlorine and an alkali

    C.

    Chlorine and water

    D.

    Chlorine and salt

Download the worksheet for Acids, Bases and Salts - Preparation and uses of Sodium Hydroxide, Bleaching powder, Baking soda, Washing soda and Plaster of Paris to practice offline. It includes additional chapter-level practice questions.

Acids, Bases and Salts - Class 10 Science (CBSE) | Krit.club