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CBSE Class 10 Acids, Bases and Salts — practice questions — page 2

Explore 50 free Acids, Bases and Salts questions in CBSE Class 10 Science. Open each question or exercise to read its content, reference answers and available explanation.

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Acids, Bases and Salts questions and exercises with answers

Showing questions 31–50 of 50.

Sort each pH by what it meansRead the answer and worked solution →Which solution has the higher pH?Read the answer and worked solution →What does an Arrhenius acid increase in water?Read the answer and worked solution →Which ion is the aqueous form of a proton?Read the answer and worked solution →An Arrhenius base in water increases which ions?Read the answer and worked solution →A Brønsted–Lowry acid is a proton…Read the answer and worked solution →In Brønsted–Lowry theory, a base accepts what?Read the answer and worked solution →A Lewis acid accepts which particle pair?Read the answer and worked solution →Which substance is given as a common weak acid?Read the answer and worked solution →Which acid is the aqueous solution of hydrogen chloride?Read the answer and worked solution →Vinegar is described as a dilute aqueous solution of…Read the answer and worked solution →What pH values are acidic at 25 °C?Read the answer and worked solution →At 25 °C, which pH is neutral?Read the answer and worked solution →At 25 °C, which description fits pH 9?Read the answer and worked solution →As pH decreases, acidity generally…Read the answer and worked solution →The pH scale is described as…Read the answer and worked solution →Match each chemical indicator with its distinct color in basic alkaline medium:Read the answer and worked solution →Match each common salt with its industrial chemical name and formula:Read the answer and worked solution →Match each gypsum / plaster compound with its water of crystallization:Read the answer and worked solution →Match each pH range with its physiological or environmental significance:Read the answer and worked solution →

Worked practice questions

Sort each pH by what it means

Read exercise and reference answers
Items
  1. Item
    pH 1
    Category
    Acidic
  2. Item
    pH 3
    Category
    Acidic
  3. Item
    pH 6
    Category
    Acidic
  4. Item
    pH 7
    Category
    Neutral
  5. Item
    pH 9
    Category
    Basic
  6. Item
    pH 11
    Category
    Basic
  7. Item
    pH 14
    Category
    Basic
Categories
  1. Item
    Acidic
  2. Item
    Neutral
  3. Item
    Basic
Instructions
Tap a pH value, then tap the kind of solution it describes.
_Source: syllabus Science Ch2 Acids Bases and Salts, 2.3 HOW STRONG ARE ACID OR BASE SOLUTIONS_

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Which solution has the higher pH?

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Questions
  1. A
    A neutral solution
    B
    A strongly acidic solution
    Higher value
    A neutral solution
  2. A
    An alkali at pH 12
    B
    A neutral solution
    Higher value
    An alkali at pH 12
  3. A
    Rain at pH 5
    B
    Rain at pH 6.5
    Higher value
    Rain at pH 6.5
  4. A
    Mouth at pH 5
    B
    Mouth at pH 7
    Higher value
    Mouth at pH 7
Instructions
Tap the solution with the higher pH value.
_Source: syllabus Science Ch2 Acids Bases and Salts, 2.3 HOW STRONG ARE ACID OR BASE SOLUTIONS_

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What does an Arrhenius acid increase in water?

  1. Chloride ions
  2. Sodium ions
  3. Hydronium ions
  4. Hydroxide ions
Show answer and solution

Correct answer: C. Hydronium ions

Arrhenius acids increase the hydronium-ion concentration in water.

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