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Acids Bases and Salts (10 Science)

Acids, bases, and salts are fundamental chemical compounds that react with each other and have important industrial and biological applications. Understand

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TL;DR: Acids, bases, and salts are fundamental chemical compounds that react with each other and have important industrial and biological applications. Under…

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Acids, bases, and salts are fundamental chemical compounds that react with each other and have important industrial and biological applications. Understand

Acids Bases and Salts MCQs with Answers & Explanations

Q1. What is the pH of a neutral solution?

  1. 0
  2. 7 ✓ (correct)
  3. 14
  4. 1

Q2. Which of the following is a strong acid?

  1. Acetic acid
  2. Carbonic acid
  3. Hydrochloric acid ✓ (correct)
  4. Phosphorous acid

Q3. The pH of an acidic solution is:

  1. Greater than 7
  2. Equal to 7
  3. Less than 7 ✓ (correct)
  4. Between 7 and 14

Q4. Which of the following is a property of bases?

  1. Taste sour
  2. Turn litmus red
  3. Are slippery to touch ✓ (correct)
  4. Increase hydrogen ion concentration

Q5. The salt formed from the reaction of HCl and NaOH is:

  1. Sodium chloride ✓ (correct)
  2. Sodium hydroxide
  3. Hydrochloric sodium
  4. Chlorine oxide

Q6. Which indicator changes color in both acidic and basic solutions?

  1. Methyl orange
  2. Phenolphthalein
  3. Litmus
  4. All of the above ✓ (correct)

Q7. The pH of a solution is -log of:

  1. Hydroxide ion concentration
  2. Hydrogen ion concentration ✓ (correct)
  3. Salt concentration
  4. Water concentration

Q8. Which salt is produced when dilute sulfuric acid reacts with zinc?

  1. Zinc oxide
  2. Zinc sulfate ✓ (correct)
  3. Zinc hydroxide
  4. Zinc chloride

Q9. The pH of a basic solution is:

  1. Less than 7
  2. Equal to 7
  3. Greater than 7 ✓ (correct)
  4. Between 0 and 7

Q10. Which of the following salts hydrolyzes to form an acidic solution?

  1. NaCl
  2. KNO3
  3. FeCl3 ✓ (correct)
  4. Na2CO3

Frequently Asked Questions

Why do acidic soils require lime for neutralization?

Lime (calcium carbonate) is a base that neutralizes acidic soils by raising their pH to make them suitable for plant growth.

How is salt produced industrially from seawater?

Salt is produced by evaporating seawater, which leaves behind solid sodium chloride crystals.

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