1. A solution is a:
A) Heterogeneous mixture
B) Homogeneous mixture
C) Compound
D) Element
Answer: B
2. The substance present in smaller amount in a solution is called:
A) Solvent
B) Solute
C) Medium
D) Mixture
Answer: B
3. The component that dissolves the solute is:
A) Solute
B) Solvent
C) Suspension
D) Colloid
Answer: B
4. Which of the following is a true solution?
A) Milk
B) Blood
C) Salt in water
D) Muddy water
Answer: C
5. Solutions are generally:
A) Opaque
B) Transparent
C) Colored only
D) Solid
Answer: B
6. Particle size in a true solution is:
A) >1000 nm
B) 1–1000 nm
C) <1 nm
D) 10–100 nm
Answer: C
7. Which mixture shows Tyndall effect?
A) Solution
B) Suspension
C) Pure water
D) Sugar solution
Answer: B
8. A suspension is:
A) Homogeneous
B) Heterogeneous
C) Pure
D) Compound
Answer: B
9. In suspensions, particles:
A) Dissolve completely
B) Settle down on standing
C) Are invisible
D) Are molecular size
Answer: B
10. Which of the following is a suspension?
A) Sugar solution
B) Salt solution
C) Sand in water
D) Alcohol in water
Answer: C