States of Matter MCQs

71. Which property is common to all states of matter?
A) Fixed shape
B) Fixed volume
C) Mass
D) Compressibility
Answer: C) Mass

72. Which state has lowest kinetic energy?
A) Solid
B) Liquid
C) Gas
D) Plasma
Answer: A) Solid

73. The conversion of ice into water is:
A) Freezing
B) Melting
C) Condensation
D) Sublimation
Answer: B) Melting

74. Which state has particles arranged randomly but closely?
A) Solid
B) Liquid
C) Gas
D) Plasma
Answer: B) Liquid

75. Which factor decreases evaporation rate?
A) High temperature
B) Low humidity
C) High humidity
D) Wind
Answer: C) High humidity

76. Which state exerts pressure in all directions?
A) Solid
B) Liquid
C) Gas
D) Plasma
Answer: C) Gas

77. Which of the following is an example of liquid?
A) Oxygen
B) Iron
C) Water
D) Carbon dioxide
Answer: C) Water

78. Which state has fixed volume but variable shape?
A) Solid
B) Liquid
C) Gas
D) Plasma
Answer: B) Liquid

79. Which state can flow and be poured?
A) Solid
B) Liquid
C) Gas
D) Both liquid and gas
Answer: D) Both liquid and gas

80. Which state has particles moving fastest?
A) Solid
B) Liquid
C) Gas
D) Plasma
Answer: D) Plasma