States of Matter Practice Questions
JEE · Chemistry · 1563 free MCQs with instant results and detailed explanations.
1563
Total
343
Easy
680
Medium
540
Hard
Start Practicing States of Matter
Take a timed quiz or customize your practice session
Topics in States of Matter
Gas Laws
206
Ideal Gas Equation
227
Real Gases
222
van der Waals Equation
226
Liquefaction
229
Critical Constants
243
Liquid State
210
Sample Questions from States of Matter
Here are 10 sample questions. Start a quiz to get randomized questions with scoring.
Q1
Easy
What is the relationship between pressure and volume of a gas at constant temperature known as?
A.
Boyle's Law
B.
Charles's Law
C.
Avogadro's Law
D.
Dalton's Law
Show Answer & Explanation
Correct Answer: A
Boyle's Law states that pressure and volume are inversely related at constant temperature.
Q2
Easy
If the temperature of a gas is doubled at constant pressure, what happens to its volume?
A.
It doubles
B.
It remains the same
C.
It halves
D.
It triples
Show Answer & Explanation
Correct Answer: A
According to Charles's Law, volume is directly proportional to temperature at constant pressure.
Q3
Easy
Which gas law states that equal volumes of gases, at the same temperature and pressure, contain an equal number of molecules?
A.
Dalton's Law
B.
Avogadro's Law
C.
Boyle's Law
D.
Charles's Law
Show Answer & Explanation
Correct Answer: B
Avogadro's Law indicates that equal volumes of gases at the same temperature and pressure contain equal numbers of molecules.
Q4
Medium
According to Boyle's law, what happens to the pressure of a gas when its volume is doubled while keeping the temperature constant?
A.
Pressure doubles
B.
Pressure remains constant
C.
Pressure is halved
D.
Pressure quadruples
Show Answer & Explanation
Correct Answer: C
Boyle's law states that pressure and volume are inversely related, so doubling the volume halves the pressure.
Q5
Medium
If the temperature of a gas is increased at constant volume, what happens to its pressure?
A.
Pressure decreases
B.
Pressure remains constant
C.
Pressure increases
D.
Pressure fluctuates
Show Answer & Explanation
Correct Answer: C
According to Gay-Lussac's law, pressure increases with temperature at constant volume.
Q6
Medium
Which of the following gas mixtures would have the highest average kinetic energy?
A.
Oxygen at 300 K
B.
Helium at 300 K
C.
Nitrogen at 300 K
D.
Carbon dioxide at 300 K
Show Answer & Explanation
Correct Answer: B
The average kinetic energy of gas molecules is directly proportional to temperature and independent of the type of gas, but lighter gases have higher velocities.
Q7
Medium
What is the relationship between the density of a gas and its molar mass at constant temperature and pressure?
A.
Density is directly proportional to molar mass
B.
Density is inversely proportional to molar mass
C.
Density equals molar mass
D.
No relationship exists
Show Answer & Explanation
Correct Answer: A
At constant temperature and pressure, density is directly proportional to molar mass according to the ideal gas law.
Q8
Hard
A gas occupies a volume of 10 L at a pressure of 2 atm. What will be the new volume if the pressure is increased to 4 atm at constant temperature?
A.
5 L
B.
10 L
C.
15 L
D.
20 L
Show Answer & Explanation
Correct Answer: A
According to Boyle's Law, P1V1 = P2V2. If pressure doubles, volume halves.
Q9
Hard
If the temperature of a gas is increased from 300 K to 600 K at constant pressure, what happens to its volume?
A.
It doubles.
B.
It remains the same.
C.
It triples.
D.
It halves.
Show Answer & Explanation
Correct Answer: A
According to Charles's Law, volume is directly proportional to temperature at constant pressure.
Q10
Hard
A balloon filled with helium gas has a volume of 5 L at a pressure of 1 atm. What volume will the balloon occupy if it rises to a height where the pressure is 0.5 atm, assuming temperature remains constant?
A.
10 L
B.
5 L
C.
2.5 L
D.
1 L
Show Answer & Explanation
Correct Answer: A
Using Boyle's Law, reducing pressure causes volume to increase. Doubling the pressure halves the volume.
Showing 10 of 1563 questions. Start a quiz to practice all questions with scoring and timer.
Practice All 1563 Questions →More Chemistry Chapters
1
Atomic Structure
1549 Qs →
2
Chemical Bonding
1435 Qs →
3
Chemical and Ionic Equilibrium
1166 Qs →
4
Thermodynamics and Thermochemistry
1545 Qs →
5
Organic Chemistry
1437 Qs →
6
Coordination Chemistry
1435 Qs →
7
Some Basic Concepts of Chemistry
1581 Qs →
8
Chemical Bonding and Molecular Structure
1424 Qs →
Other JEE Subjects
States of Matter — JEE Chemistry Practice Questions Online
This page contains 1563 practice MCQs for the chapter States of Matter in JEE Chemistry. The questions are organized by difficulty — 343 easy, 680 medium, 540 hard — so you can choose the right level for your preparation.
Every question includes a detailed explanation to help you understand the concept, not just memorize answers. Take a timed quiz to simulate exam conditions, or practice at your own pace with no time limit. This chapter covers 7 topics, giving you comprehensive coverage of the entire chapter.