Salts, Characteristics and methods of preparation of salts MCQs || 10th Chemistry Chapter 10
1. Salts are formed by the neutralization of which two types of compounds?
A) Acid and metal
B) Acid and base
C) Base and water
D) Metal and water
2. What are the positive ions in salts called?
A) Anions
B) Cations
C) Bases
D) Acids
3. What are the negative ions in salts called?
A) Cations
B) Bases
C) Anions
D) Metals
4. A cation is derived from which type of compound?
A) Acid
B) Base
C) Salt
D) Metal
5. An anion is derived from which type of compound?
A) Base
B) Metal
C) Salt
D) Acid
6. Sodium chloride is formed from which acid?
A) Sulphuric acid
B) Hydrochloric acid
C) Phosphoric acid
D) Nitric acid
7. What is the formula for Potassium nitrate?
A) KCl
B) KNO3
C) NaCl
D) NaNO3
8. Which salt is formed from Zinc and Sulphuric acid?
A) Zinc acetate
B) Zinc chloride
C) Zinc sulphate
D) Zinc phosphate
9. What is a characteristic property of salts?
A) They are liquid at room temperature
B) They have low boiling points
C) They are ionic compounds
D) They are always soluble in water
10. Salts typically have which type of structure?
A) Gas
B) Crystalline
C) Liquid
D) Amorphous
11. What is one reason why salts have high melting and boiling points?
A) They contain no water
B) They are ionic compounds
C) They are gases
D) They are liquid at room temperature
12. Water of crystallization in salts is responsible for what?
A) Color
B) Shape of crystals
C) Taste
D) Solubility
13. What is the formula for Copper(II) sulphate with water of crystallization?
A) CuSO4.2H2O
B) CuSO4.5H2O
C) CuSO4.3H2O
D) CuSO4.4H2O
14. How many water molecules are in Calcium sulphate with crystallization?
A) 1
B) 2
C) 5
D) 3
15. Salts are considered neutral compounds because they have equal what?
A) Number of ions
B) Positive and negative charges
C) Masses
D) Solubility
16. What type of reaction occurs between an acid and a base to form salts?
A) Synthesis
B) Neutralization
C) Decomposition
D) Combustion
17. What gas is typically evolved when an acid reacts with a metal?
A) Oxygen
B) Carbon dioxide
C) Hydrogen
D) Nitrogen
18. Which method is used to prepare soluble salts from an acid and a metal?
A) Precipitation
B) Direct displacement
C) Neutralization
D) Evaporation
19. When an acid reacts with a carbonate, what are the products formed?
A) Salt and hydrogen gas
B) Salt, water, and carbon dioxide
C) Salt and ammonia
D) Salt and alcohol
20. What is produced when an acid reacts with an insoluble metallic oxide?
A) Salt and hydrogen gas
B) Salt and water
C) Salt and carbon dioxide
D) Salt and ammonia
21. Which of the following is an example of an acid?
A) Sodium chloride
B) Hydrochloric acid
C) Calcium carbonate
D) Zinc oxide
22. Which of the following salts contains an acetate ion?
A) Zinc sulphate
B) Silver acetate
C) Calcium phosphate
D) Potassium nitrate
23. What is the formula for Calcium phosphate?
A) Ca3(PO4)2
B) Ca(PO4)3
C) Ca2(PO4)3
D) Ca(PO4)2
24. Which salt is formed when Sodium reacts with Hydrochloric acid?
A) Sodium acetate
B) Sodium chloride
C) Sodium sulphate
D) Sodium nitrate
25. Salts can be recovered from solutions by which method?
A) Boiling
B) Filtration
C) Evaporation
D) Distillation
26. What type of salt is formed when an acid and a carbonate react?
A) Soluble salt
B) Insoluble salt
C) Neutral salt
D) All of the above
27. Which reaction method involves mixing solutions to form an insoluble salt?
A) Direct displacement
B) Neutralization
C) Precipitation
D) Evaporation
28. Which of the following salts is soluble in water?
A) Calcium phosphate
B) Silver chloride
C) Potassium nitrate
D) Lead(II) sulphate
29. Which property is true for salts?
A) They are always acidic
B) They have no ionic bonds
C) They can conduct electricity when dissolved in water
D) They are liquid at room temperature
30. Which of the following acids can form a salt with Zinc?
A) Hydrochloric acid
B) Water
C) Alcohol
D) Sugar
Answer Key
- B
- B
- C
- B
- D
- B
- B
- C
- C
- B
- B
- B
- B
- B
- B
- B
- C
- B
- B
- B
- B
- B
- A
- B
- C
- A
- C
- C
- C
- A