Liquid States MCQ [Free PDF] - Objective Question Answer for Liquid States Quiz

Introduction

• A collection of Multiple Choice Questions (MCQs) focusing on the properties and facts about liquids.
• Aimed at helping aspirants understand and practice questions that can be asked about liquid states.

Key Concepts on Liquid States

• Properties of Liquids: Definite volume, no definite shape, possess viscosity and surface tension.
• Intermolecular Forces: Stronger in liquids compared to gases, making them an intermediary state between solids and gases.
• Effect of Temperature: Understanding the impact of temperature changes on the properties of liquids, including viscosity and surface tension.

Sample Questions and Detailed Solutions

Question 1

• Scenario: Calculate surface tension of a stearic acid film.
• Given: Work needed to decrease coverage by 1 cm² is 25.0 x 10⁻⁷ J.
• Solution: Surface tension of the film calculated as 0.047 N/m.

Question 2

• Query: Substance that takes the shape of a container.
• Options:
  1. Tungsten
  2. Iron
  3. Petrol
  4. Paper
• Answer: Petrol
• Explanation: Petrol, being a liquid, adapts to the shape of the container.

Question 3

• Query: Characteristics of solids not applicable.
• Options:
  1. High Rigidity
  2. Regular Shape
  3. High compressibility
  4. More than one of the above
• Answer: High compressibility
• Explanation: Solids do not compress easily.

Question 4

• Query: Factor affecting boiling point increase.
• Options:
  1. Decreasing pressure
  2. Increasing pressure
  3. Increasing weight
• Answer: Increasing the pressure
• Explanation: Higher pressure increases the energy required for molecules to escape the liquid phase.

Question 5

• Query: Substance conforming to container shape.
• Options:
  1. Solid
  2. Liquid
  3. All correct
• Answer: Liquid

Additional Questions

Question 6

• Query: Reason for lower boiling point at high altitudes.
• Answer: Lower air pressure

Question 7

• Query: Metal not reacting with oxygen at high temperature.
• Answer: Silver

Question 8

• Query: Best conductor of heat among liquids.
• Answer: Mercury

Question 9

• Query: Conversion from liquid to gas.
• Answer: Evaporation

Question 10

• Query: Maximum permissible turbidity for potable water as per BIS.
• Answer: 5 NTU

Question 11

• Query: Energy absorption during phase change from ice to water.
• Answer: Heat is absorbed

Question 12

• Query: Physical state of water at 12°C.
• Answer: Liquid

Question 13

• Query: Measure of liquid clarity.
• Answer: Turbidity

Question 14

• Query: Purpose of salt in ice creams.
• Answer: Salt decreases the melting point

Question 15

• Query: Method not useful in separating chalk and water.
• Answer: Sublimation

Study and Exam Preparation

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