Chemistry Chapter 3 Entry Test MCQs
Topic 3
States of Matter
1. Which one of the following statements is not correct about the three states of matter i.e. solid, liquid and gaseous?
a. Gases like liquids possess definite volumes
b. Molecules of a solid possess least energy whereas those of a gas possess highest energy
c. Molecules of a solid possess vibratory motion
d. The density of solid is highest whereas that of gases is lowest
2. Kinetic energy of molecules is highest in
a. Liquids
b. Gases
c. Solutions
d. Solids
Fundamental Parameters
3. A volume of 1 m3 is equal to
a. 10 dm3
b. 1000 cm3
c. 106 cm3
d. 100 cm3
4. Which one of the following is not a unit of pressure?
a. Pascal
b. Newton
c. Bar
d. Torr
5. 1oC rise in temperature is equal to a rise of
a. 5/9oF
b. 1oF
c. 33oF
d. 9/5oF
6. The temperature which is common in Celsius and Fahrenheit scales is
a. -30oC
b. -20oC
c. -50oC
d. -40oC
7. S.T.P for gases refers to
a. 25°C, 1atm
b. 32°F, 101325Nm–2
c. 2°C,1atm
d. 273°C, 1 atm
8. Half atmospheric pressure is
a. 101.3Pa
b. 200 torr
c. 14.7 Psi
d. 50662.5Pa
9. Which is not equal to 1 atm
a. 1.01325 KPa
b. 1.01325 Bar
c. 101325 Pa
d. 14.7 psi
Gas Laws
10. The reason of the following shape of graph is that
a. V is linearly related to P
b. V is independent of P
c. V is exponentially related to P
d. Increase in P decreases V
11. Identify the point at which the gas liquefies
a. 3
b. 1
c. 4
d. 2
12. Mention the temperature at which the volume of a gas will become twice of what it is at 0oC.
a. 100 oC
b. 273 oC
c. 200 oC
d. 546 oC
13. The change in volume of a given mass of a gas for 1oC rise or fall in T is recorded to be 1cm3. What was the volume of gas at 0°C.
a. 546cm3
b. 200cm3
c. 1092cm3
d. 273 cm3
14. Quantitative definition of Charles’s law is obeyed in _____scale
a. Fahrenheit
b. Kelvin
c. Rankin
d. Celsius
15. Which of the following is an incorrect relationship?
a. P ∝ T (n, V = constant)
b. P ∝ n (V, T = constant)
c. V ∝ R (n, T = constant)
d. V ∝ T (n, P = constant)
16. What can be done to move the system from state 1 to state 2? 
a. Increase P, T
b. Increase T
c. Decrease T
d. Increase V
17. If the volume of a gas is doubled, the Crms will
a. Be half
b. Be same
c. Quadruple
d. Double
18. The temperature of 2 dm3 of methane was increased from 20 K to 40 K. The new volume is
a. 4 dm3
b. 2 dm3
c. 6 dm3
d. 8 dm3
19. Vt = Vo (𝟏 + 𝐭/𝟐𝟕𝟑 ) Here Vo is
a. Volume at T (K)
b. Initial V
c. Volume at 0oC
d. Volume at T (0 K)
20. 250 cm3 of H2 gas is cooled from 270C to – 1230C at constant pressure. What would be the new volume of Gas?
a. 50 cm3
b. 250 cm3
c. 100 cm3
d. 125 cm3
21. At absolute temperature (0K or -273.150C), volume of gas becomes zero theoretically. This temperature in Fahrenheit scale is:
a. – 459
b. 459.67
c. 273
d. – 273.15
22. Slope of the plot between PV and P at constant temperature is
a. Zero
b. ½
c. 1/√2
d. 1
23. At absolute zero, which one of the following statement is correct
a. Molecular motions are ceased
b. All the gases become liquid
c. All the substances become solids
d. Water freezes
24. Two balloons are filled with equal moles of H2 and He at STP. Which balloon will contract first if same size holes are made in both of them?
a. Balloon filled with H2
b. Both will contract at the same time
c. H2 filled balloon will contract first and He-filled balloon will not contract.
d. Balloon filled with He.
25. According to Avogadro’s law, .899 g of 1dm3 H2 and 1.4384 g of 1 dm3 O2 have number of molecules at STP
a. H2 has more
b. Same
c. O2 has more
d. Different