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Question 1:

Which of the following statements is true about the arrangement of particles in a gaseous state?

A) The particles are closely packed in a regular arrangement
B) The particles are loosely packed and have significant empty space
C) The particles are free to move around randomly
D) The particles are in a liquid state

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Explanation: The correct answer is B) The particles are loosely packed and have significant empty space. In the gaseous state, the particles are far apart and move randomly. There is a lot of empty space between the particles.

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Question 2:

Which of the following properties is characteristic of gases?

A) Definite shape and volume
B) Indefinite shape and definite volume
C) Indefinite shape and volume
D) Definite shape and indefinite volume

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Explanation: The correct answer is C) Indefinite shape and volume. Gases do not have a definite shape or volume. They take the shape and volume of their container, filling it completely and evenly.

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Question 3:

Which of the following describes the motion of particles in a gaseous state?

A) Vibrational motion around fixed positions
B) Random translational motion
C) Rapid movement with large distances between particles
D) Constant expansion and contraction

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Explanation: The correct answer is B) Random translational motion. In the gaseous state, the particles have random translational motion, meaning they move in all directions with high speed. They are not confined to fixed positions and have large distances between them.

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Question 4:

Which of the following is an example of a gas?

A) Ice
B) Gold
C) Oxygen
D) Wood

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Explanation: The correct answer is C) Oxygen. Oxygen is an example of a gas. Gases can exist at room temperature and have properties such as low density and high compressibility.

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Question 5:

Which of the following is NOT a property of gases?

A) Low density
B) High compressibility
C) Undefined boiling point
D) Fixed shape

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Explanation: The correct answer is D) Fixed shape. Gases do not have a fixed shape and can expand to fill the entire volume of the container. They have low density, high compressibility, and do not have an undefined boiling point.