States of Matter MCQ Questions for Class 11 Chemistry Chapter 5 with Answers

We have completed the NCERT/CBSE chapter-wise Multiple Choice Questions for Class 11 Chemistry book Chapter 5 States of Matter with Answers by expert subject teacher for latest syllabus and examination. You can Prepare effectively for the exam taking the help of the Class 11 Chemistry Objective Questions PDF free of cost from here. Students can take a free test of the Multiple Choice Questions of States of Matter. Each Questions has four options followed by the right answer. Download the Chemistry Quiz Questions with Answers for Class 11 free Pdf and prepare to exam and help students understand the concept very well.

MCQ Questions for Class 11 Chemistry with Answers

Q1. A gas will approach ideal behaviour at

(i) Low temperature, low pressure
(ii) Low temperature, high pressure
(iii) High temperature, low pressure
(iv) High temperature, high pressure

(iii) High temperature, low pressure

Q2. Rate of effusion of a gas is

(i) Directly proportional to its density
(ii) Directly proportional to its molar mass
(iii) Directly proportional to the square root of its mass
(iv) Inversely proportional to the square root of its molar mass.

(iv) Inversely proportional to the square root of its molar mass.

Q3. The rate of diffusion methane is twice that of X. The molecular mass of X is

(i) 64.0
(ii) 32.0
(iii) 40
(iv) 80

(i) 64.0

Q4. Who proposed the concept of dispersion force ?

(i) Fritz London
(ii) van der Waal
(iii) Heitler and London
(iv) Gay Lussac

(i) Fritz London

Q5. According to kinetic theory of gases,in an ideal gas,between two successive collisions a gas molecule travels

(i) In a circular path
(ii) In a wavy path
(iii) In a straight line path
(iv) With an accelerated velocity

(iii) In a straight line path

Q6. The pressure of 2 moles of an ideal gas at 273°C occupying a volume of 44.8 L is

(i) 2 atm
(ii) 1 atm
(iii) 3 atm
(iv) 4 atm

(i) 2 atm

Q7. The state of matter that shows the uniformity of behavior :

(i) Solid Liquid
(ii) Liquid
(iii) Gas
(iv) None of the Above

(iii) Gas

Q8. The first reliable measurement on properties of gases was made by

(i) Robert Boyle
(ii) Gay Lussac
(iii) Jacques charles
(iv) Avogadro

(i) Robert Boyle

Q9. Sl unit of pressure is :

(i) Pascal
(ii) torr
(iii) mm of Hg
(iv) none of the above

(i) Pascal

Q10. When temperature is increased, surface tension of water

(i) increases
(ii) decreases
(iii) remains constant
(iv) shows irregular behaviour

(ii) decreases

Q11. A gas deviates from ideal behavior at a high pressure because its molecules:

(i) Attract one another
(ii) Show the Tyndall Effect
(iii) Have kinetic energy
(iv) Are bound by covalent bonds

(i) Attract one another

Q12. The lowest hypothetical or imaginary temperature at which gases are supposed to occupy zero volume is called

(i) absolute zero
(ii) constant temperature
(iii) Kelvin temperature
(iv) Charle’s temperature

(i) absolute zero

Q13. If the pressure of a gas is increased then its mean free path becomes:

(i) 0
(ii) Less
(iii) More
(iv) Infinity

(ii) Less

Q14. Which of the following exhibits the weakest molecular forces?

(i) NH3
(ii) HCl
(iii) He
(iv) H2O

(iii) He

Q15. In van der Waal equation of state of gas laws, the constant b is a measure of

(i) Intermolecular collisions per unit volume
(ii) Intermolecular attraction
(iii) Volume occupied by the molecules
(iv) Intermolecular repulsions

(iii) Volume occupied by the molecules

Q16. The rates of diffusion of gases are inversely proportional to square root of their densities . This statement refers to :

(i) Daltons Law
(ii) Grahams Law
(iii) Avogadros Law
(iv) None of the Above

(ii) Grahams Law

Q17. Steam distillation is based on

(i) Boyle’s Law
(ii) Charle’s Law
(iii) Dalton’s Law of partial pressures
(iv) Avogadro’s Law

(iii) Dalton’s Law of partial pressures

Q18. How many of the know elements exist as gases at 25°C?

(i) 9
(ii) 11
(iii) 12
(iv) 15

(ii) 11

Q19. Equal masses of ethane and hydrogen are mixed in an empty container at 25°C . The fraction of total pressure exerted by hydrogen is

(i) 1 : 2
(ii) 1 : 1
(iii) 01 : 16
(iv) 15 : 16

(iv) 15 : 16

Q20. Molar volume of CO2 is maximum at

(i) N.T.P.
(ii) d°C and 2.0 atm
(iii) 127°C and 1 atm
(iv) 273°C and 2 atm

(iv) 273°C and 2 atm

Q21. The rise or fall of a liquid within a tube of small bore is called:

(i) Surface Tension
(ii) Capillary Action
(iii) Viscosity
(iv) Formation of Curvature

(ii) Capillary Action

Q22. Standard conditions are :

(i) 0°C and 14. 7mm
(ii) 32°F and 76 cm
(iii) 273°C and 760 mm
(iv) 4°C and 76 m

(ii) 32°F and 76 cm

Q23. When the temperature is increased, surface tension of water

(i) increases
(ii) decreases
(iii) remains constant
(iv) shows irregular behaviour

(ii) decreases

Q24. Falling drop of water is spherical due to:

(i) Hydrogen Bonding
(ii) Surface Tension
(iii) Capillary Action
(iv) Vlscosity

(ii) Surface Tension

Q25. When did substances exist in different crystalline forms the phenomenon is called :

(i) Allotropy
(ii) Polymorphism
(iii) Polymerization
(iv) Isomorphism

(ii) Polymorphism

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MCQ Questions for Class 11 Chemistry Chapter wise with Answers

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