Chemistry · Science General
States of Matter
2,382 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
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Liquid, solid, gas
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Gas, solid, liquid
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Solid, liquid, gas
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Gas, liquid, solid
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The process of a solid turning to liquid.
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The process of gas turning to liquid
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The process of a gas turning to a solid
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The process of liquid turning to gas
D
Correct answer
Explanation
Evaporation is the phase transition in which a liquid turns into a gas, typically occurring at temperatures below the boiling point at the liquid's surface. Solid to liquid is melting, and gas to liquid is condensation.
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Mix it
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Cool it
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Heat it
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Shake it
C
Correct answer
Explanation
Heating a liquid increases the kinetic energy of its molecules, allowing them to overcome intermolecular forces and transition into a gas. Cooling a liquid would instead lead to freezing (turning into a solid).
B
Correct answer
Explanation
The chemical formula for water is H2O, representing two hydrogen atoms bonded to one oxygen atom.
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Chemical and Physical
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Chemical and Spiritual
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Physical and Emotional
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Emotional and Spiritual
A
Correct answer
Explanation
Matter can undergo physical changes (which alter the form or appearance but not the chemical composition) and chemical changes (which result in the formation of new chemical substances). Spiritual and emotional changes do not apply to physical matter in science.
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Solid
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Gas
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Molecules
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Liquid
C
Correct answer
Explanation
The primary states of matter are solid, liquid, and gas (as well as plasma). Molecules are particles that make up matter, not a state of matter itself.
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Will have the greatest water potential
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Has zero water potential at standard temperature and under no pressure
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is denoted by Greek sunil Psi
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All
D
Correct answer
Explanation
Pure water at standard temperature and pressure has the greatest water potential (defined as zero). It is denoted by the Greek letter Psi. Any solution has lower water potential than pure water because solute potential is always negative.
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condensation and evaporation
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vaporization and condensation
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melting and freezing
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sublimation and deposition
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sublimation
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condensation
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evaporation
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deposition
B
Correct answer
Explanation
Condensation is the phase change from gas to liquid. This occurs when gas particles lose kinetic energy and cluster together.
D
Correct answer
Explanation
A solid is a state of matter characterized by particles packed closely together in a fixed structure, giving it both a definite shape and a definite volume.
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Tension
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Geothermal Energy
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pyroclastic flow
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Viscosity
D
Correct answer
Explanation
Viscosity is the measure of a fluid's resistance to flow. In geology, it is used to describe how easily magma or lava flows.
A
Correct answer
Explanation
Water is the resource used for drinking and hydration. While the phrasing 'fresh drink' is slightly awkward, the intent is clearly about drinking water. Rocks and soil are not consumed as beverages.
B
Correct answer
Explanation
Melting ice is a phase change from solid to liquid. The substance remains water, so it is a physical change.
A
Correct answer
Explanation
Melting is a phase change where the substance remains water (H2O) regardless of whether it is solid or liquid. Since the chemical identity does not change, it is a physical change.
A
Correct answer
Explanation
Crumbling paper changes its shape and appearance but does not alter its chemical composition. Therefore, it is a physical change.