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States Of Matter Questions

Practice 34 States Of Matter questions with detailed answers and explanations. Free MCQs, PYQs, and mock test questions for NEET, JEE, GATE, SSC and more.

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34
Total Questions
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10
Easy
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22
Medium
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2
Hard
Practice by Exam:Chemistry(31)General Knowledge and General Awareness(3)

About States of Matter — practice questions, PYQs & concepts

States of Matter is a frequently-tested topic on Chemistry, General Knowledge and General Awareness. ExamTest.live currently lists 34 States of Matter questions spanning previous-year papers from 2026 to 2026, each with worked solutions and a step-by-step explanation. Use the filters on this page to focus on a specific exam, difficulty level or year — every answer key is free, no sign-up required.

States of Matter weight in competitive exams

Across our States of Matter question bank, the largest sources are Chemistry (31) and General Knowledge and General Awareness (3). Click any exam chip above to drill down to that exam-specific question set.

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All States Of Matter Questions(1–34 of 34)

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Q1mediummcqChemistryAIEEE2026
0% accuracy
Which one of the following statements is NOT true about the effect of an increase in temperature on the distribution of molecular speeds in a gas?
Q2mediummcqChemistryNEET 20192026
0% accuracy
A gas at 350K and 15bar has molar volume 20 percent smaller than that for an ideal gas under the same conditions. The correct option about the gas and its compressibility factor (Z) is:
Q3mediummcqGeneral Knowledge and General AwarenessSSC CPO 20242026
0% accuracy
Which phenomenon is the exact opposite of solidification?
Q4mediummcqGeneral Knowledge and General AwarenessSSC CPO 20242026
0% accuracy
Which of the following diagrams accurately represents the interconversion of the three states of matter?
(Given: Solid, Liquid, Gas; and processes: Vaporisation, Solidification, Fusion, Condensation, Sublimation, Deposition)

image
Q5easymcqChemistryNEET 20232026
Which amongst the following options is the correct graphical representation of Boyle’s Law?
(a)
image
Q6mediummcqChemistryNEET 20212026
Choose the correct option for the total pressure (in atm.) in a mixture of and confined in a total volume of one litre at is:
Q7mediummcqChemistryNEET 20212026
Choose the correct option for graphical representation of Boyle's law, which shows a graph of pressure vs. Volume of a gas at different temperature.
image
image
Q8mediummcqChemistryNEET 2020 E12026
A mixture of and gases in a cylinder contains of and of . If the total pressure of the mixture of the gases in the cylinder is , the partial pressure of is:[Use atomic masses (in ): ]
Q9easymcqChemistryNEET (UG) 20182026
The correction factor ‘ ’ to the ideal gas equation corresponds to:
Q10easymcqChemistryNEET (UG) 20182026
Given van der Waals constant ' ' for and are respectively and . Which one of the following gases is most easily liquefied?
Q11easymcqChemistryNEET 20222026
Which one is not correct mathematical equation for Dalton's Law of partial pressure? Here total pressure of gaseous mixture.
Q12mediummcqChemistryNEET 20222026
A flask contains of oxygen at . (Assume gas is behaving ideally). The pressure inside the flask in bar is [Given ]:
Q13mediummcqChemistryAIEEE 20042026
As the temperature is raised from to , the average kinetic energy of neon atoms changes by a factor of:
Q14easymcqChemistryAIEEE 20042026
In the van der Waals equation of state for a gas, the constant ' ' is a measure of:
Q15mediummcqChemistryAIEEE2026
If of water is introduced into a flask to , how many moles of water are in the vapour phase when equilibrium is established?(Given: Vapour pressure of at is ; )
Q16mediummcqChemistryFIITJEE AIEEE 2011 (Set Q)2026
a' and b' are van der Waals' constants for gases. Chlorine is more easily liquefied than ethane because:
Q17hardmcqChemistryAIEEE 20122026
The compressibility factor for a real gas at high pressure is:
Q18mediummcqChemistryJEE Main2026
For gaseous state, if most probable speed is denoted by , average speed by and root mean square speed by , then for a large number of molecules the ratios of these speeds are:
Q19mediummcqGeneral Knowledge and General AwarenessPrepp2026
Which phenomenon is opposite to solidification?
Q20mediummcqChemistryChemistry
0% accuracy
Match List - I with List - IIList-I (Example)A. HumidityB. AlloysC. AmalgamsD. SmokeList-II (Type of Solution)I. Solid in solidII. Liquid in gasIII. Solid in gasIV. Liquid in solidChoose the correct answer from the options given below:
Q21mediummcqChemistryChemistry
0% accuracy
By what factors does the average velocity of a gaseous molecule increase when the temperature (in Kelvin) is doubled?
Q22mediummcqChemistryChemistry
0% accuracy
A gaseous mixture was prepared by taking equal moles of and . If the total pressure of the mixture was found to be atmosphere, the partial pressure of nitrogen () in the mixture is:
Q23mediummcqChemistryChemistry
0% accuracy
Two gases and having the same volume diffuse through a porous partition in and seconds respectively. The molecular mass of is . Molecular mass of will be:
Q24hardmcqChemistryChemistry
Equal moles of hydrogen and oxygen gases are placed in a container with a pin-hole through which both can escape. What fraction of the oxygen escape in the time required for one-half of the hydrogen to escape?
Q25easymcqChemistryChemistry
A gas such as carbon monoxide would be most likely to obey the ideal gas law at:
Q26easymcqChemistryChemistry
Maximum deviation from ideal gas behavior is expected from:
Q27easymcqChemistryChemistry
What is the dominant intermolecular force or bond that must be overcome in converting liquid to a gas?
Q28mediummcqChemistryChemistry
of each gas and of gas takes and seconds respectively for effusing through a pin hole under the similar conditions. If molecular mass of gas is , the molecular mass of gas will be:
Q29mediummcqChemistryChemistry
A certain gas takes three times as long to effuse out as helium. Its molecular mass will be:
Q30mediummcqChemistryChemistry
For real gases van der Waals equation is written as:

Select the correct order for constants ' ' and ' ':
Q31easymcqChemistryChemistry
Equal volumes of two monoatomic gases, and , at same temperature and pressure are mixed. The ratio of specific heats () of the mixture will be:
Q32mediummcqChemistryChemistry
Air bubble at and rises to surface where it is and . The volume becomes:
Q33easymcqChemistryChemistry
If a gas expands at constant temperature, it indicates that:
Q34mediummcqChemistryChemistry
Assertion : Compressibility factor for hydrogen varies with pressure with positive slope at all pressures.Reason : Even at low pressures, repulsive forces dominate hydrogen gas.

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