Class 11 Chemistry MCQ Chapter 5 States of Matter: Gases, Liquids and solids Solutions to each chapter is provided in the list so that you can easily browse through different chapters Class 11 Chemistry MCQ Chapter 5 States of Matter: Gases, Liquids and solids Solutions and select need one. Class 11 Chemistry MCQ Chapter 5 States of Matter: Gases, Liquids and solids Question Answers Download PDF. AHSEC Chemistry Multiple Choice Class 11 Solutions.
Class 11 Chemistry MCQ Chapter 5 States of Matter: Gases, Liquids and solids
Also, you can read the NCERT book online in these sections Solutions by Expert Teachers as per Central Board of Secondary Education (CBSE) Book guidelines. HS 1st Year Chemistry Objective Type Solutions are part of All Subject Solutions. Here we have given NCERT Class 11 Chemistry Multiple Choice Question and Answer, NCERT Class 11 Chemistry Objective Type Solutions for All Chapters, You can practice these here.
States of Matter: Gases, Liquids and solids
Chapter: 5
| MCQ |
1. The vapour pressure of water at 300 K in a closed container is 0.4 atm. If the volume of container is doubled, its vapour pressure at 300 K will be
(i) 0.6 atm.
(ii) 0.1 atm.
(iii) 0.4 atm.
(iv) 0.8 atm.
Ans: (iii) 0.4 atm.
2. Which of the following is not a type of van der Waals Forces?
(i) Ion – dipole forces.
(ii) Heitler and LondonLondon forces.
(iii) Dipole – induced dipole forces.
(iv) Dipole – dipole forces.
Ans: (i) Ion – dipole forces.
3. A person living in Shimla observed that cooking food without using pressure cooker takes more time. The reason for this observation is that at high altitude:
(i) Pressure increases.
(ii) Temperature decreases.
(iii) Pressure decreases.
(iv) Temperature increases.
Ans: (iii) Pressure decreases.
4. Which of the following property of water can be used to explain the spherical shape of rain droplets ?
(i) Viscosity.
(ii) Surface tension.
(ii) Critical phenomena.
(iv) Pressure.
Ans: (ii) Surface tension.
5. A plot of volume (V) versus tempera- ture (T) for a gas at constant pressure is a straight line passing through the origin. The plots at different values of pressure are shown in Fig. 5.36. Which of the following order of pressure is correct for this gas?
(i) P1P2P3>P4
(ii) P₁=P2=P3=P4
(iii) P₁<P2<P3<P4
(iv) P₁<P2=P3<P4
Ans: (iii) P₁<P2<P3<P4
6. Name the liquid with higher vapour pressure in the following pairs:
(i) Alcohol, Water, Petrol.
(ii) Petrol, Water, Alcohol.
(iii) Alcohol, Petrol, Water.
(iv) None of these.
Ans: (iii) Alcohol, Petrol, Water.
7. Who proposed the concept of dispersion force ?
(i) Fritz London.
(ii) van der Waal.
(iii) Heitler and London.
(iv) Gay Lussac.
Ans: (i) Fritz London.
8. The interaction energy of London force is inversely proportional to sixth power of the distance between two interacting particles but their magnitude depends upon
(i) Strength of permanent dipoles in the particles.
(ii) Mass of interacting particles.
(iii) Polarisability of interacting particles.
(iv) Charge of interacting particles.
Ans: (iii) Polarisability of interacting particles.
9. What is the lowest possible temperature according to Charles’ Law?
(i) -100°C
(ii) -273°C
(iii) 0°C
(iv) -500°C
Ans: (ii) -273°C
10. The rate of diffusion methane is twice that of X. The molecular mass of X is
(i) 64.0
(ii) 32.0
(iii) 50
(iv) 80
Ans: (i) 64.0
11. The value of universal gas constant R depends on
(i) Units of Volume,Temperature and Pressure.
(ii) Volume of Gas.
(iii) Number of Moles of Gas.
(iv) Temperature of Gas.
Ans: (i) Units of Volume,Temperature and Pressure.
12. Which of the following statement is wrong for gases?
(i) Gases do not have definite shape and volume .
(ii) Volume of the gas is equal to the volume of the container confining the gas.
(iii) Confined gas exert uniform pressure on the wall of the container in all directions.
(iv) Mass of the gas cannot be determined by weighing a container in which it is contained.
Ans: (iv) Mass of the gas cannot be determined by weighing a container in which it is contained.
13. Dipole-dipole interaction is stronger than the London forces but is weaker than ion-ion interaction because
(i) Only partial charges are involved.
(ii) Only total charges are involved.
(iii) Both.
(iv) None of these.
Ans: (i) Only partial charges are involved.
14. The interaction energy of London force is inversely proportional to sixth power of the distance between two interacting particles but their magnitude depends upon :
(i) Charge of interacting particles
(ii) Mass of interacting particles
(iii) Polarisability of interacting particles
(iv) Strength of permanent dipoles in the particles.
Ans: (iii) Polarisability of interacting particles.
15. Dipole-dipole forces act between the molecules possessing perma-nent dipole. Ends of dipoles possess ‘partial charges’. The partial charge is:
(i) More than unit electronic charge.
(ii) Equal to unit electronic charge.
(iii) Less than unit electronic charge.
(iv) Double the unit electronic charge.
Ans. (iii) Less than unit electronic charge.
