61. Which solution type is alloy?
A) Liquid solution
B) Solid solution
C) Gas solution
D) Suspension
Answer: B
62. Which of the following is a colloidal solution?
A) Salt water
B) Milk
C) Sugar solution
D) Alcohol
Answer: B
63. The stability of solution is due to:
A) Large particles
B) Small particles
C) Gravity
D) Temperature
Answer: B
64. Which mixture is most stable?
A) Suspension
B) Solution
C) Colloid
D) Emulsion
Answer: B
65. Which property is used to distinguish colloids?
A) Sedimentation
B) Tyndall effect
C) Filtration
D) Boiling
Answer: B
66. Which mixture is not transparent?
A) Solution
B) Suspension
C) Pure water
D) Alcohol
Answer: B
67. Which one has uniform particle distribution?
A) Suspension
B) Solution
C) Mud
D) Sand
Answer: B
68. Which process separates solute from solution?
A) Filtration
B) Evaporation
C) Decantation
D) Sedimentation
Answer: B
69. Which is an example of gas in liquid?
A) Oxygen in water
B) Air
C) Brass
D) Milk
Answer: A
70. Which type of solution is vinegar?
A) Liquid in liquid
B) Solid in liquid
C) Gas in liquid
D) Solid in gas
Answer: A