Chapter 10 - Acid , Base and salts

Acid, Base and Salts

Quiz

 

1. Which of the following is a characteristic property of acids?
   1.   Bitter taste
   2.   Slippery feel
   3.   Turns blue litmus paper red
   4.   Turns red litmus paper blue
2. Which of the following is an example of a strong acid?
   1.   Acetic acid (CH₃COOH)
   2.   Hydrochloric acid (HCl)
   3.   Carbonic acid (H₂CO₃)
   4.   Phosphoric acid (H₃PO₄)
3. What is the chemical formula for sulfuric acid?
   1.   H₂SO₃
   2.   H₂SO₄
   3.   H₂SO₅
   4.   H₂S
4. What is the nature of sodium hydroxide (NaOH) in water?
   1.   Acidic
   2.   Basic
   3.   Neutral
   4.   Amphoteric
5. Which of the following is an example of a weak base?
   1.   Sodium hydroxide (NaOH)
   2.   Potassium hydroxide (KOH)
   3.   Ammonia (NH₃)
   4.   Calcium hydroxide (Ca(OH)₂)
6. A substance that can act as both an acid and a base is known as:
   1.   Neutral
   2.   Amphoteric
   3.   Strong
   4.   Strong
7. What is the pH of a neutral solution at 25°C?
   1.   0
   2.   7
   3.   14
   4.   1
8. What is the product formed when an acid reacts with a base?
   1.   Salt and water
   2.   Salt and carbon dioxide
   3.   Salt and hydrogen gas
   4.   Salt only
9. Which of the following is a common property of bases?
   1.   Sour taste
   2.   Corrosive
   3.   Turns red litmus paper blue
   4.   Releases H⁺ ions in water
10. Which gas is produced when an acid reacts with a metal carbonate?
    1.   Hydrogen
    2.   Oxygen
    3.   Carbon dioxide
    4.   Nitrogen