Question 1:
Surface tension is the property of a liquid that causes it to:
Explanation: The correct answer is B) Contract and minimize its surface area. Surface tension is the property of a liquid that causes it to minimize its surface area, resulting in a contractive force that pulls the liquid molecules inward.
Question 2:
Capillary action is the process by which a liquid:
Explanation: The correct answer is B) Flows against gravity in a narrow tube. Capillary action is the process by which a liquid flows against gravity in a narrow tube or capillary due to adhesive and cohesive forces between the liquid and the tube's walls.
Question 3:
Which of the following factors affects the magnitude of surface tension?
Explanation: The correct answer is A) Temperature. The magnitude of surface tension is affected by temperature. Generally, surface tension decreases with increasing temperature.
Question 4:
Capillary rise in a narrow tube is higher when:
Explanation: The correct answer is D) The liquid has high surface tension. Capillary rise in a narrow tube is higher when the liquid has high surface tension, as stronger cohesive forces between the liquid molecules contribute to a greater capillary effect.
Question 5:
Which of the following statements is true regarding surface tension?
Explanation: The correct answer is C) Surface tension is dependent on the shape of the container. Surface tension depends on the nature of the liquid as well as the shape of the container or surface on which the liquid is in contact.
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