2nd Year Chemistry Chapter 4 Test04. Acid–Base Chemistry

Q1. Multiple choice questions (Attempt all · 10 × 1 = 10)

1. The point at which moles of acid = moles of base is called:
   1. Endpoint
   2. Neutral point
   3. Equivalence point
   4. Indicator point
2. The mathematical expression for pH is:
   1. pH = log [H⁺]
   2. pH = –log [H⁺]
   3. pH = log [OH⁻]
   4. pH = –log [OH⁻]
3. Strong bases are located on which side of the pH scale?
   1. Left side
   2. Middle
   3. Right side
   4. Both ends
4. The pH value of a 10 M solution of HCl is
   1. less than 0
   2. equal to 0
   3. qual to 1
   4. equal to 2
5. The relation between pH and pOH is:
   1. pH – pOH = 14
   2. pH + pOH = 14
   3. pH × pOH = 14
   4. pH/pOH = 14
6. pH scale was introduced by
   1. Arrhenius
   2. Sorensen
   3. Lowry
   4. Lewis
7. Which of the following statements are correct? (i) Kw = [H⁺][OH⁻] = 10⁻¹⁴ mol² dm⁻⁶ at 298 K (ii) At 298 K [H⁺] = [OH⁻] = 10⁻⁷ (iii) Kw does not depend upon temperature (iv) Molarity of pure water = 55.55 M
   1. , (ii) and (iii)
   2. , (ii) and (iii)
   3. and (iv)
   4. (ii) and (iii)
8. A solution with pH = 7 is considered:
   1. Acidic
   2. Neutral
   3. Basic
   4. Highly acidic
9. The p in pH is derived from the German word meaning:
   1. Power
   2. Position
   3. Potential
   4. Ponder
10. How many dm³ of water must be added to 1 dm³ of aqueous solution of HCl with a pH of 1 to create an aqueous solution with a pH of 2?
    1. 0.1 dm³
    2. 0.9 dm³
    3. 2.0 dm³
    4. 2.0 dm³