MCQ on States of Matter Class 11. We covered all the MCQ on States of Matter Class 11 in this post for free so that you can practice well for the exam.
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Mock Test on States of Matter for Class 11 Students
At absolute zero, which one of the following is zero for a gas?
(a) Potential energy
(b) Kinetic energy
(c) Vibration energy
(d) None of the above
Option b – Kinetic energy
Which of the following gases will have the highest rate of diffusion?
(a) O₂
(b) CO₂
(c) NH3
(d) N₂
Option c – NH3
The gas used in a refrigerator is
(a) cooled down on flowing.
(b) heated up on flowing
(c) cooled down when compressed.
(d) cooled down when expanded.
Option d – cooled down when expanded
A balloon filled with ethylene is pricked with a sharp point and quickly dropped in a tank of H₂ gas under identical conditions. After a while, the balloon will have
(a) shrunk
(b) enlarged
(c) completely collapsed
(d) remained unchanged in size
Option b – enlarged
Some of the following properties are transport properties. I. Viscosity II. Surface tension III. Thermal conductance IV. Diffusion Select the correct alternative of transport properties.
(a) I, II, III, IV
(b) I, III, IV
(c) I, III
(d) III, IV
Option b – I, III, IV
Consider the following statements. I. The rate of diffusion of liquids is higher than that of solids. II. In the liquid state, particles move freely and have greater space between each other as compared to particles in the solid state. Which of the statement(s) given above is/are correct?
(a) Only I
(b) Only II
(c) Both I and II
(d) None of these
Option c – Both I and II
Assertion (A) All liquids are conductors of electricity. Reason (R) Under the condition of low pressure and high voltage, liquids can be made conducting. Codes
(a) Both A and R are true and R is the correct explanation of A
(b) Both A and R are true, but R is not the correct explanation of A
(c) A is true, but R is false
(d) A is false, but R is true
Option d – A is false, but R is true
The creation of something from nothing is against the law of
(a) Constant proportions
(b) Conservation of mass-energy
(c) Multiple proportions
(d) Reciprocal Proportions
According to which one of the following laws is indicated that when two or more gases react with one another, their volumes bear a simple ratio?
(a) Law of Mass Action
(b) Law of Multiple Proportions
(c) Law of Reciprocal Proportions
(d) Law of Combining Volumes
Option d – Law of Combining Volumes
At constant temperature, the product of pressure and volume of a given amount of a gas is constant. This is
(a) Gay-Lussac Law
(b) Charles Law
(c) Boyle’s Law
(d) Pressure Law
Option c – Boyle’s Law
Name the law in Physics which states that an equal volume of all gases under the same conditions of temperature and pressure contain an equal number of molecules.
(a) Avogadro’s Law
(b) Boyles’s Law
(c) Ohm’s Law
(d) Charles’s Law
Option a – Avogadro’s Law
The proposition equal volumes of different gases contain equal numbers of molecules at the same temperature and pressure is known as
(a) Avogadro’s hypothesis
(b) Gay-Lussac’s hypothesis
(c) Planck’s hypothesis
(d) Kirchhoff’s hypothesis
Option a – Avogadro’s hypothesis
An ideal gas is one which obeys
(a) Gas Law
(b) Boyle’s Law
(c) Charle’s Law
(d) Avogadro’s Law
Option a – Gas Law
In general equation pV = nRT, V is the volume of
(a) n mole of a gas
(b) any amount of gas
(c) one mole of a gas
(d) one gram of a gas
Option a – n mole of a gas
Air at sea level is found to be dense. This is in accordance with
(a) Boyle’s Law
(b) Charle’s Law
(c) Dalton’s Law
(d) Avogadro’s Law
Option a – Boyle’s Law
For an ideal gas, which one of the following statements is not true?
(a) The speed of all gas molecules is the same.
(b) The kinetic energies of all gas molecules are not the same.
(c) The potential energy of the gas molecules is zero.
(d) There is no interactive force between the molecules.
Option a – The speed of all gas molecules is the same
A balloon filled with helium rises in the air because
(a) air exerts an upward force on the balloon
(b) the balloon is weightless.
(c) helium is less dense than air.
(d) helium pushes down on the air below the balloon.
Option c – helium is less dense than air
When a gas is compressed at constant temperature
(a) the speeds of the molecules decrease.
(b) the speeds of the molecules increase.
(c) the collisions between the molecules increase.
(d) the collisions between the molecules decrease.
Option c – the collisions between the molecules increase
The mass of water vapor per unit volume of air is known as
(a) relative humidity
(b) specific humidity
(c) absolute humidity
(d) variable humidity
Option c – absolute humidity
The temperature at which a solid melts to become a liquid at the atmospheric pressure is called its melting point. The melting point of a solid is an indication of
(a) the strength of the intermolecular forces of attraction.
(b) strength of the intermolecular forces of repulsion.
(d) molecular size.
Statement I Glass is not considered a true compound. Statement II Glass does not have a definite melting point. Codes
(a) Both the statements are individually true and statement il is the correct explanation of statement I.
(b) Both statements are individually true, but statement II is not the correct explanation of statement I.
(c) Statement I is true, but statement II is false.
(d) Statement I is false, but statement II is true.
Option a – Both the statements are individually true and statement il is the correct explanation of statement I
The unit of viscosity is
(a) poise
(b) dyne/cm
(c) joule/m²
(d) joule
Option a – poise
Which one of the following elements exists in a liquid state at room temperature?
(a) Mercury
(b) Lead
(c) Sodium
(d) Calcium
Option a – Mercury
When pure water boils vigorously, the bubbles that rise to the surface are composed primarily of
(a) air
(b) hydrogen
(c) hydrogen and oxygen
(d) water vapor
Option d – water vapor
Lowering the atmospheric pressure on a liquid ( MCQ on States of Matter Class 11 )
(a) increases the boiling point of the liquid.
(b) lowers the boiling point of the liquid.
(c) does not affect the boiling point of the liquid.
(d) increases the time required for it to boil.
Option b – lowers the boiling point of the liquid
We covered all the mcq on states of matter class 11 above in this post for free so that you can practice well for the exam.
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