States of Matter MCQs

51. Which state has particles with the least attraction?
A) Solid
B) Liquid
C) Gas
D) Plasma
Answer: C) Gas

52. Which state has particles arranged in a regular pattern?
A) Liquid
B) Gas
C) Solid
D) Plasma
Answer: C) Solid

53. The energy required to change liquid into gas is called:
A) Heat of fusion
B) Heat of vaporization
C) Heat of condensation
D) Heat of freezing
Answer: B) Heat of vaporization

54. Which process occurs at the surface of liquid?
A) Boiling
B) Evaporation
C) Condensation
D) Freezing
Answer: B) Evaporation

55. Which state has indefinite shape but definite mass?
A) Solid
B) Liquid
C) Gas
D) All states
Answer: D) All states

56. Increasing temperature causes particles to:
A) Slow down
B) Stop moving
C) Move faster
D) Freeze
Answer: C) Move faster

57. Which state has strongest intermolecular forces?
A) Gas
B) Liquid
C) Solid
D) Plasma
Answer: C) Solid

58. Which of the following shows maximum fluidity?
A) Solid
B) Liquid
C) Gas
D) Plasma
Answer: C) Gas

59. Which state can diffuse into solids?
A) Liquid
B) Gas
C) Plasma
D) None
Answer: B) Gas

60. Which process is solid → gas → liquid?
A) Sublimation then condensation
B) Melting then boiling
C) Freezing then sublimation
D) Evaporation then freezing
Answer: A) Sublimation then condensation