Refer to NEET Chemistry States Of Matter MCQs Set B provided below. NEET Full Syllabus Chemistry MCQs with answers available in Pdf for free download. The MCQ Questions for Full Syllabus Chemistry with answers have been prepared as per the latest syllabus, NEET books and examination pattern suggested in Full Syllabus by NEET, NCERT and KVS. Multiple Choice Questions for States Of Matter are an important part of exams for Full Syllabus Chemistry and if practiced properly can help you to get higher marks. Refer to more Chapter-wise MCQs for NEET Full Syllabus Chemistry and also download more latest study material for all subjects
MCQ for Full Syllabus Chemistry States Of Matter
Full Syllabus Chemistry students should refer to the following multiple-choice questions with answers for States Of Matter in Full Syllabus. These MCQ questions with answers for Full Syllabus Chemistry will come in exams and help you to score good marks
States Of Matter MCQ Questions Full Syllabus Chemistry with Answers
Question: The compressibility of a gas is less than unity at STP. Therefore,
- a) V > 22.4 L
- b) V < 22.4 L
- c) V = 22.4 L
- d) V = 44.8 L
Answer: V < 22.4 L
Question: When the temperature of certain sample of a gas is changed from 30°C to 606 K and its pressure is reduced to half, the volume of gas changes from V to V2. The value of V is
- a) 2 dm3
- b) 4 dm3
- c) 8 dm3
- d) Unpredictable
Answer: 4 dm3
Question: Molar mass of certain gas A is half that of B. If rms speed of molecules of A at certain temperature is 200ms–1. The rms speed of B at the temperature half that of A will be
- a) 200 ms–1
- b) 100 ms–1
- c) 300 ms–1
- d) 400 ms–1
Answer: 100 ms–1
Question: In what ratio by mass, the gases CO and 2 butene (C4H8) be mixed in a vessel so that they cause same partial pressures?
- a) 1 : 1
- b) 2 : 1
- c) 1 : 2
- d) 1 : 3
Answer: 1 : 2
Question: A sample of gas contains N1 molecules and the total kinetic energy at –123°C is E1 ergs. Another sample of gas at 27°C has total kinetic energy as 2E1 ergs. Assuming gases to be ideal, the number of gas molecules in the second sample will be
- a) N1
- b) N1/2
- c) 2N1
- d) 4N1
Answer: N1
Question: A gas in a vessel is heated in such a way that its pressure and volume both become two times. The temperature of the gas expressed in Kelvin scale becomes
- a) Half
- b) Becomes two times
- c) Becomes 2/3rd of its original value
- d) Becomes four times
Answer: Becomes four times
Question: At constant volume for a fixed number of a moles of a gas, the pressure of the gas increases with the rise in temperature due to
- a) Increase in average molecular speed
- b) Increase in rate of collisions amongst
- c) Increase in molecular attraction
- d) Increase in mean free path
Answer: Increase in average molecular speed
Question: The root mean square velocity of an ideal gas at constant pressure varies with density as
- a) d2
- b) d
- c) √d
- d)
Answer:
Question: Which of the following has maximum number of molecules?
- a) 2.7 g of NH3
- b) 1 L SO2 at STP
- c) 2 L of Cl2 at STP
- d) 0.1 mol of H2S
Answer: 2.7 g of NH3
Question: The mixture of three gases X, Y and Z is enclosed in a closed vessel at constant temperature. Molecular weight of X is the highest and that of Y is the least. When equilibrium is established the
- a) Gas X will be more at bottom
- b) Gas Y will be more at top
- c) Gas X, Y, Z are homogeneously present
- d) Gas Y will be more at bottom
Answer: Gas X, Y, Z are homogeneously present
Question: Density of gaseous mixture A and B from percentage volume is given as
- a)
- b)
- c)
- d)
Answer:
Question: The Critical temperature, Boyle’s temperature and Inversion temperature respectively are given as
- a)
- b)
- c)
- d)
Answer:
Question: Which of the following is incorrect for pressure units?
- a) 1 atmosphere is equal to 1.01325 bar
- b) 1.01325 bar is equal to 0.875 atmosphere
- c) 1.01325 × 105 Pa is equal to 1.01325 bar
- d) 1 atmosphere is equal to 1.01325 × 105 kg m–1 s–2
Answer: 1.01325 bar is equal to 0.875 atmosphere
More Questions........................................................
Question: For a given mass of a gas, if pressure is reduced to half and temperature is increased two times then the final volume would become (V = initial volume)
- a)
- b) 2V2
- c) 6V
- d) 4V
Answer: 4V
Question: Temperature above which gas behave ideally over a wide range of pressure is called as
- a) Boyle’s temperature
- b) Inversion temperature
- c) Critical temperature
- d) Kraft temperature
Answer: Boyle’s temperature
Question: Which of the following is not correct in case of kinetic theory of gases?
- a) Gases are made up of small particles of negligible size as compared to container size
- b) The molecules are in random motion always
- c) When molecules collide they lose energy
- d) When the gas is heated, the average kinetic energy of gas molecules increase
Answer: When molecules collide they lose energy
Question: van der Waal’s constant ‘a’ and ‘b’ are related with _____ respectively
- a) Attractive force and bond energy of molecules
- b) Attractive force and volume of molecules
- c) Volume and repulsive force of molecules
- d) Shape and repulsive force of molecules
Answer: Attractive force and volume of molecules
Question: The rate of diffusion of a gas having molecular weight just double of hydrogen gas is 30 ml s–1. The rate of diffusion of hydrogen gas will be
- a) 42.42 ml s–1
- b) 60 ml s–1
- c) 120 ml s–1
- d) 21.21 ml s–1
Answer: 42.42 ml s–1
Question: Three lines at three different values of constant pressure are given, which of the following relation is correct?
- a) P1= P2= P3
- b) P1> P2> P3
- c) P3> P2> P1
- d) Can’t predicted
Answer: P1> P2> P3
Question: If for the gases, the critical temperature are mentioned below i.e.,
Which of the following can be predicted?
- a) Ease of liquefaction is minimum in gas D
- b) Gas A has maximum value of van der Waal’s constant ‘a’
- c) Ease of liquefaction is directly proportional to van der Waal’s constant ‘a’
- d) All of these
Answer: All of these
Question: At high temperature and low pressure van der Waal’s equation can be expressed as
- a)
- b)
- c) P(V – b) = RT
- d) PV = RT
Answer: PV = RT
Question: At constant volume, pressure and temperature are related as (T0= STP temp.)
- a)
- b)
- c)
- d) All of these
Answer:
Question: If the ratio of CP and CV for a gas is 1.4. The number of atoms present in 11.2 litre of it at STP is
- a) 6.02 × 1023
- b) 1.2 × 1023
- c) 3.01 × 1023
- d) 12.04 × 1023
Answer: 6.02 × 1023
Question: The slope of the graph between log P and log V at constant temperature for a given mass of a gas is
- a) +1
- b) –1
- c)
- d)
Answer: –1
Question: Equal masses of H2, O2 and methane have been taken in a container of volume V at temperature 27°C in identical conditions. The ratio of the volumes of gases H2: O2: methane would be
- a) 8:16:1
- b) 16:8:1
- c) 16:1:2
- d) 8:1:2
Answer: 16:1:2
Question: Dipole-induced dipole interactions are present in which of the following pairs
- a) Cl2 and CCl4
- b) HCl and He atoms
- c) SiF4 and He atoms
- d) H2O and alcohol
Answer: HCl and He atoms
Question: Maximum deviation from ideal gas is expected from
- a) N2(g)
- b) CH4(g)
- c) NH3(g)
- d) H2(g)
Answer: NH3(g)
Question: A certain gas takes three times as long to effuse out as helium. Its molecular mass will be
- a) 27 u
- b) 36 u
- c) 64 u
- d) 9 u
Answer: 36 u
Question: By what factor does the average velocity of a gaseous molecule increase when the temperature (in Kelvin) is doubled?
- a) 1.4
- b) 2.0
- c) 2.8
- d) 4.0
Answer: 1.4
Question: van der Waal’s real gas acts as an ideal gas, at which conditions?
- a) High temperature, low pressure
- b) Low temperature, high pressure
- c) High temperature, high pressure
- d) Low temperature, low pressure
Answer: High temperature, low pressure
Question: Equal masses of H2, O2 and methane have been taken in a container of volume V at temperature 27°C in identical conditions. The ratio of the volumes of gases H2: O2: methane would be
- a) 8:16:1
- b) 16:8:1
- c) 16:1:2
- d) 8:1:2
Answer: 16:1:2
Question: Dipole-induced dipole interactions are present in which of the following pairs
- a) Cl2 and CCl4
- b) HCl and He atoms
- c) SiF4 and He atoms
- d) H2O and alcohol
Answer: HCl and He atoms
Question: A certain gas takes three times as long to effuse out as helium. Its molecular mass will be
- a) 27 u
- b) 36 u
- c) 64 u
- d) 9 u
Answer: 36 u
Question: By what factor does the average velocity of a gaseous molecule increase when the temperature (in Kelvin) is doubled?
- a) 1.4
- b) 2.0
- c) 2.8
- d) 4.0
Answer: 1.4
Question: Two gases A and B having the same volume diffuse through a porous partition in 20 and 10 seconds respectively.The molecular mass of A is 49 u. Molecular mass of B will be
- a) 25.00 u
- b) 50.00 u
- c) 12.25 u
- d) 6.50 u
Answer: 12.25 u
Question: A gaseous mixture was prepared by taking equal mole of CO and N2 . If the total pressure of the mixture was found 1 atmosphere, the partial pressure of the nitrogen (N2) in the mixture is
- a) 1 atm
- b) 0.5 atm
- c) 0.8 atm
- d) 0.98 atm
Answer: 0.5 atm
Question: A bubble of air is underwater at temperature 15°C and the pressure 1.5 bar. If the bubble rises to the surface where the temperature is 25°C and the pressure is 1.0 bar what will happen to the volume of the bubble ?
- a) Volume will become smaller by a factor of 0.70
- b) Volume will become greater by a factor of 2.5
- c) Volume will become greater by a factor of 1.6
- d) Volume will become greater by a factor of 1.1
Answer: Volume will become greater by a factor of 1.6
Question: The pressure exerted by 6.0 g of methane gas in a 0.03 m3 vessel at 129°C is (Atomic masses : C = 12.01, H = 1.01 and R = 8.314 JK–1 mol–1 )
- a) 215216 Pa
- b) 13409 Pa
- c) 41648 Pa
- d) 31684 Pa
Answer: 41648 Pa
Question: A monatomic gas at pressure P1 and volume V1 is compressed adiabatically to 1/8 th its original volume. What is the final presssure of the gas ?
- a) 64 P1
- b) P1
- c) 16 P1
- d) 32 P1
Answer: 32 P1
Question: If a gas expands at constant temperature, it indicates that
- a) Number of the molecules of gas increases
- b) Kinetic energy of molecules decreases
- c) Pressure of the gas increases
- d) Kinetic energy of molecules remains the same
Answer: Kinetic energy of molecules remains the same
Question: The surface tension of which of the following liquid is maximum?
- a) H2O
- b) C6H6
- c) CH3OH
- d) C2H5OH
Answer: H2O
Question: What is the density of N2 gas at 227°C and 5.00 atm pressure ? (R = 0.0821 Atm K–1 mol–1)
- a) 0.29 g/ml
- b) 1.40 g/ml
- c) 2.81 g/ml
- d) 3.41 g/ml
Answer: 3.41 g/ml
Question: 50 ml of hydrogen diffuses out through a small hole of a vessel, in 20 minutes. The time taken by 40 ml of oxygen to diffuse out is
- a) 32 minutes
- b) 64 minutes
- c) 8 minutes
- d) 12 minutes
Answer: 64 minutes
Question: The temperature of a gas is raised from 27°C to 927°C. The root mean square speed of the gas
- a) Remains same
- b)
- c) Gets halved
- d) Gets doubled
Answer: Gets doubled
Question: An ideal gas, obeying kinetic theory of gases can not be liquefied, because
- a) It solidifies before becoming a liquid
- b) Forces acting between its molecules are negligible
- c) Its critical temperature is above 0°C
- d) Its molecules are relatively small in size
Answer: Forces acting between its molecules are negligible
Question: 0.24 g of a volatile substance, upon vapourisation, gives 45 ml vapour at NTP. What will be the vapour density of the substance?
- a) 95.93
- b) 59.73
- c) 95.39
- d) 5.993
Answer: 59.73
Question: At 25°C and 730 mm pressure, 380 ml of dry oxygen was collected. If the temperature is constant, what volume will the oxygen occupy at 760 mm pressure?
- a) 569 ml
- b) 365 ml
- c) 265 ml
- d) 621 ml
Answer: 365 ml
Question: Which of the following statements is wrong for gases?
- a) Confined gas exerts uniform pressure on the walls of its container in all directions
- b) Volume of the gas is equal to volume of container confining the gas
- c) Gases do not have a definite shape and volume
- d) Mass of a gas cannot be determined by weighing a container in which it is enclosed
Answer: Mass of a gas cannot be determined by weighing a container in which it is enclosed
Question: The beans are cooked earlier in pressure cooker because
- a) Boiling point increases with increasing pressure
- b) Boiling point decreases with increasing pressure
- c) Extra pressure of pressure cooker softens the beans
- d) Internal energy is not lost while cooking in pressure cooker
Answer: Boiling point increases with increasing pressure
Question: Which of the following mixture of gases does not obey Dalton’s Law of partial pressure?
- a) Cl2 and SO2
- b) CO2 and He
- c) O2 and CO2
- d) N2 and O2
Answer: Cl2 and SO2
Question: What is the dominant intermolecular force or bond that must be overcome in converting liquid CH3OH to a gas?
- a) London dispersion force
- b) Hydrogen bonding
- c) Dipole-dipole interaction
- d) Covalent bonds
Answer: Hydrogen bonding
Question: Average molar kinetic energy of CO and N2 at same temperature is
- a) KE1= KE2
- b) KE1> KE2
- c) KE1< KE2
- d) Can’t say any thing. Both volumes are not given
Answer: KE1= KE2
Question: van der Waal’s real gas acts as an ideal gas, at which conditions?
- a) High temperature, low pressure
- b) Low temperature, high pressure
- c) High temperature, high pressure
- d) Low temperature, low pressure
Answer: High temperature, low pressure
Question: van der Waal’s constant ‘a’ and ‘b’ are related with _____ respectively
- a) Attractive force and bond energy of molecules
- b) Attractive force and volume of molecules
- c) Volume and repulsive force of molecules
- d) Shape and repulsive force of molecules
Answer: Attractive force and volume of molecules
Question: Temperature above which gas behave ideally over a wide range of pressure is called as
- a) Boyle’s temperature
- b) Inversion temperature
- c) Critical temperature
- d) Kraft temperature
Answer: Boyle’s temperature
Question: The mixture of three gases X, Y and Z is enclosed in a closed vessel at constant temperature. Molecular weight of X is the highest and that of Y is the least. When equilibrium is established the
- a) Gas X will be more at bottom
- b) Gas Y will be more at top
- c) Gas X, Y, Z are homogeneously present
- d) Gas Y will be more at bottom
Answer: Gas X, Y, Z are homogeneously present
Question: At constant volume for a fixed number of a moles of a gas, the pressure of the gas increases with the rise in temperature due to
- a) Increase in average molecular speed
- b) Increase in rate of collisions amongst
- c) Increase in molecular attraction
- d) Increase in mean free path
Answer: Increase in average molecular speed
Question: In what ratio by mass, the gases CO and 2 butene (C4H8) be mixed in a vessel so that they cause same partial pressures?
- a) 1 : 1
- b) 2 : 1
- c) 1 : 2
- d) 1 : 3
Answer: 1 : 2
Question: The compressibility of a gas is less than unity at STP. Therefore,
- a) V > 22.4 L
- b) V < 22.4 L
- c) V = 22.4 L
- d) V = 44.8 L
Answer: V < 22.4 L
Question: The density of gas A is twice that of gas B at the same temperature. The molecular weight of gas B is thrice that of A. The ratio of pressure acting on A and B will be
- a) 6 : 1
- b) 7 : 8
- c) 2 : 5
- d) 1 : 4
Answer: 6 : 1
Question: Solubility product principle can be applied when
- a) A solid is insoluble in a liquid
- b) A liquid is insoluble in another liquid
- c) Any ionic compound is sparingly soluble in a liquid
- d) Substance is ionic
Answer: Any ionic compound is sparingly soluble in a liquid
Question: An example of a salt dissolved in water to give acidic solution is
- a) Ammonium chloride
- b) Sodium acetate
- c) Potassium nitrate
- d) Barium bromide
Answer: Ammonium chloride
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NEET Full Syllabus Chemistry States Of Matter MCQs
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