Chemistry ยท Science General
States of Matter
2,682 Questions
States of matter questions explore physical changes, evaporation, phase transitions, and the properties of liquids and gases. Topics cover density, cryosurgery, heavy water, and electrolytes. This foundational chemistry topic frequently appears in general science sections of SSC and railway exams.
Phase change mechanismsEvaporation and temperature effectsProperties of liquidsPhysical versus chemical changesElectrolytes and heavy water
States of Matter Questions
Which of the following is NOT a common type of foam used in molecular gastronomy?
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Hot foam
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Cold foam
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Solid foam
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Liquid foam
C
Correct answer
Explanation
Solid foam is not a type of foam that is typically used in molecular gastronomy. Foams in molecular gastronomy are typically either hot, cold, or liquid.
The cavitation phenomenon in fluid flow occurs when:
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Pressure in the fluid drops below its vapor pressure.
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Temperature in the fluid rises above its boiling point.
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Velocity of the fluid increases beyond a critical value.
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Density of the fluid decreases below a critical value.
A
Correct answer
Explanation
Cavitation occurs when the pressure in a fluid drops below its vapor pressure, causing the liquid to vaporize and form bubbles.
What is the dispersed phase in a colloid?
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Solid
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Liquid
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Gas
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All of the above
D
Correct answer
Explanation
A colloid is a mixture of two or more substances, one of which is dispersed in the other in the form of small particles.
What is the continuous phase in a colloid?
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Solid
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Liquid
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Gas
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All of the above
B
Correct answer
Explanation
The continuous phase in a colloid is the phase in which the dispersed phase is dispersed.
What are the different types of colloids?
Correct answer
Explanation
The different types of colloids include sols, gels, emulsions, and foams.
What are the applications of colloids?
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Food
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Cosmetics
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Pharmaceuticals
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All of the above
D
Correct answer
Explanation
Colloids are used in a wide variety of applications, including food, cosmetics, and pharmaceuticals.
Which of the following is a common solvent used in art conservation?
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Acetone
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Mineral spirits
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Water
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All of the above
D
Correct answer
Explanation
Acetone, mineral spirits, and water are all common solvents used in art conservation.
Which drink is typically served in a copper mug?
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Water
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Soda
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Beer
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Mixed Drinks
D
Correct answer
Explanation
Mixed drinks, particularly Moscow Mules, are often served in copper mugs at concert tours, adding a unique and visually appealing element to the experience.
Which drink is typically served in a rocks glass?
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Water
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Soda
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Beer
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Mixed Drinks
D
Correct answer
Explanation
Mixed drinks, particularly whiskey-based cocktails, are often served in rocks glasses at concert tours, adding a touch of sophistication to the experience.
What is the principle behind the operation of a thermometer?
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The expansion and contraction of a liquid or gas
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The change in electrical resistance of a metal
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The change in color of a substance
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The change in weight of a substance
A
Correct answer
Explanation
A thermometer operates based on the expansion and contraction of a liquid or gas.
Which of the following is a property of fluids?
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Viscosity
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Density
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Surface tension
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All of the above
D
Correct answer
Explanation
Viscosity, density, and surface tension are all properties of fluids. Viscosity is the resistance of a fluid to flow, density is the mass per unit volume of a fluid, and surface tension is the tendency of a fluid to minimize its surface area.
What is the process by which water vapor in the atmosphere condenses into liquid water droplets or ice crystals?
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Evaporation
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Condensation
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Precipitation
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Transpiration
B
Correct answer
Explanation
Condensation is the process by which water vapor in the atmosphere cools and changes into a liquid or solid state.
What is the name of the process by which neutrinos can change from one flavor to another?
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Neutrino oscillation
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Neutrino decay
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Neutrino scattering
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Neutrino absorption
A
Correct answer
Explanation
Neutrino oscillation is the process by which neutrinos can change from one flavor to another as they travel through space.
Which of the following is an example of a particle effect?
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Fire
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Water
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Smoke
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All of the above
D
Correct answer
Explanation
Fire, water, and smoke are all examples of particle effects that are commonly used in video games.
Which of the following is an example of a dissolve?
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A transition that fades from one shot to another
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A transition that wipes from one shot to another
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A transition that cuts from one shot to another
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A transition that zooms from one shot to another
A
Correct answer
Explanation
A dissolve is a film editing transition that involves the gradual fading out of one shot while another shot fades in. This type of transition is often used to create a smooth and seamless flow between shots.