(I) A base is a substance that neutralizes an acid. Which of these substances is not a base?
a) Aqueous ammonia
b) Sodium chloride
c) Sodium carbonate
d) Calcium oxide
(II) Lewis acid-base concept has the following characteristics except:
a) Formation of an adduct
b) Formation of a coordinate covalent bond
c) Donation and acceptance of an electron pair
d) Donation and acceptance of a proton
(III) Acetic acid is used for:
a) Flavoring food
b) Making explosives
c) Etching designs
d) Cleaning metals
(IV) A salt is not composed of:
a) A metallic cation
b) A non-metallic anion
c) An anion of a base
d) An anion of an acid
(V) If a liquid has a pH of 7, then it must:
a) Be a colorless and odorless liquid
b) Freeze at 0°C and boil at 100°C
c) Be neutral
d) Be a solution containing water
(VI) A salt always:
a) Contains ions
b) Contains water of crystallization
c) Dissolves in water
d) Forms crystals that conduct electricity
(VII) Dilute acids react with carbonates to produce the given products except:
a) Salt
b) Water
c) Carbon dioxide
d) Hydrogen
(VIII) In the preparation of insoluble salts, which one of the facts is incorrect?
a) Two soluble salts are mixed
b) Ions of both salts are exchanged
c) One of the salts produced is insoluble
d) Both of the salts produced are insoluble
(IX) A reaction between an acid and a base produces:
a) Salt and water
b) Salt and gas
c) Salt and an acid
d) Salt and a base
(X) The conjugate acid of HPO₄²⁻ is:
a) PO₄³⁻
b) H₂PO₄⁻
c) H₂PO₄²⁻
d) H₃PO₄
(XI) What is the pOH of a 0.02 M Ca(OH)₂?
a) 1.698
b) 1.397
c) 12.31
d) 12.61
(XII) Which one of the following species is not amphoteric?
a) H₂O
b) NH₃
c) HCO₃⁻
d) SO₄²⁻
(XIII) The product of a Lewis acid-base reaction is called an adduct. The bond between the adduct
species is:
a) Ionic
b) Covalent
c) Metallic
d) Coordinate covalent
(XIV) The water of crystallization is responsible for the:
a) Melting points of crystals
b) Boiling points of crystals
c) Shapes of crystals
d) Transition points of crystals
(XV) You want to dry a gas. Which one of the following salts will you use?
a) CaCl₂
b) NaCl
c) CaO
d) Na₂SiO₃
(XVI) Ferric hydroxide Fe(OH)₃ precipitates when aqueous sodium hydroxide is added to ferric chloride.
The color of the precipitate is:
a) White
b) Blue
c) Dirty green
d) Brown
(XVII) Which ion is the conjugate base of sulfuric acid?
a) SO₃²⁻
b) S²⁻
c) HSO₄⁻
d) HSO₃⁻
(XVIII) Which one of the following is a Lewis base?
a) NH₃
b) BF₃
c) H⁺
d) AlCl₃
(XIX) According to the Lewis concept, an acid is a substance that can:
a) Donate a proton
b) Donate a pair of electrons
c) Accept a proton
d) Accept a pair of electrons
(XX) Given Kₓ = [H⁺][OH⁻] = 1 × 10⁻¹⁴ mol² dm⁻⁶ at 25°C. What is the concentration of H⁺ in pure water?
a) 1 × 10⁻⁷ mol dm⁻³
b) 1 × 10⁷ mol dm⁻³
c) 1 × 10⁻¹⁴ mol dm⁻³
d) 1 × 10¹⁴ mol dm⁻³
10th Chemistry Chapter 2 Acids, Bases, and Salts – Exercise Test Online
The online exercise test for 10th Class Chemistry Chapter 2, Acids, Bases, and Salts, is a valuable tool for mastering concepts such as the pH scale, neutralization reactions, and the properties of acids and bases. This test provides a variety of MCQs, short questions, and numerical problems to enhance students’ preparation for exams. With a user-friendly interface and instant feedback, it is an ideal resource for identifying strengths and areas for improvement. Visit Mr Pakistani for more educational resources and updates. Also, don’t forget to explore our YouTube channel, Asif Brain Academy, for detailed explanations and video tutorials.
10th Chemistry Chapterwise Online MCQ Test – Chapterwise
