## STATES OF MATTER QUIZ-14

IIT JEE exam which consists of JEE Main and JEE Advanced is one of the most important entrance exams for engineering aspirants. The exam is held for candidates who are aspiring to pursue a career in the field of engineering and technical studies. Chemistry is important because everything you do is chemistry! Even your body is made of chemicals. Chemical reactions occur when you breathe, eat, or just sit there reading. All matter is made of chemicals, so the importance of chemistry is that it's the study of everything.

Q1. Statement 1: The plot of volume (V) versus pressure (P) at constant temperature is a hyperbola in the first quadrant
Statement 2: V ∝ 1/P at constant temperature
•  Statement 1 is True, Statement 2 is True; Statement 2 is correct explanation for Statement 1
•  Statement 1 is True, Statement 2 is True; Statement 2 is not correct explanation for Statement 1
•  Statement 1 is True, Statement 2 is False
•  Statement 1 is False, Statement 2 is True
Solution:
Q2. Statement 1: In the Schottky defect equal number of extra cations and electrons are present in the interstitial sites
Statement 2: In schottky defect equal number of cations and anions are missing
•  Statement 1 is True, Statement 2 is True; Statement 2 is correct explanation for Statement 1
•  Statement 1 is True, Statement 2 is True; Statement 2 is not correct explanation for Statement 1
•  Statement 1 is True, Statement 2 is False
•  Statement 1 is False, Statement 2 is True
Solution:
Q3.  Statement 1: On compressing a gas to half the volume, the number of molecules is halved
Statement 2: The number of moles present decreases with decrease in volume
•  Statement 1 is True, Statement 2 is True; Statement 2 is correct explanation for Statement 1
•  Statement 1 is True, Statement 2 is True; Statement 2 is not correct explanation for Statement 1
•  Statement 1 is True, Statement 2 is False
•  Statement 1 is False, Statement 2 is True
Solution:
Q4.  Statement 1: Noble gases can be liquefied
Statement 2: Attractive forces can exist between non-polar molecules
•  Statement 1 is True, Statement 2 is True; Statement 2 is correct explanation for Statement 1
•  Statement 1 is True, Statement 2 is True; Statement 2 is not correct explanation for Statement 1
•  Statement 1 is True, Statement 2 is False
•  Statement 1 is False, Statement 2 is True
Solution:
Q5. Statement 1: Greater the value of van der Waal’s constant ‘a’ greater is the liquefication of gas.
Statement 2: ‘a’ indirectly measures the magnitude of attractive forces between the molecules.

•  Statement 1 is True, Statement 2 is True; Statement 2 is correct explanation for Statement 1
•  Statement 1 is True, Statement 2 is True; Statement 2 is not correct explanation for Statement 1
•  Statement 1 is True, Statement 2 is False
•  Statement 1 is False, Statement 2 is True
Solution:
Q6. Statement 1: In van der Waals equation (P+a/V2)(V-b) = RT Pressure correction (a⁄V2) is due to the force of attraction between molecules
Statement 2: Volume of gas molecule cannot be neglected due to force of attraction
•  Statement 1 is True, Statement 2 is True; Statement 2 is correct explanation for Statement 1
•  Statement 1 is True, Statement 2 is True; Statement 2 is not correct explanation for Statement 1
• Statement 1 is True, Statement 2 is False
•  Statement 1 is False, Statement 2 is True
Solution:
Q7.Statement 1: If H2 and Cl enclosed separately in the same vessel exert pressure of 100 and 200 mm respectively, their mixture in the same vessel at the same temperature will exert a pressure of 300 mm
Statement 2: Dalton’s law of partial pressure states that total pressure is the sum of partial pressures
•  Statement 1 is True, Statement 2 is True; Statement 2 is correct explanation for Statement 1
•  Statement 1 is True, Statement 2 is True; Statement 2 is not correct explanation for Statement 1
•  Statement 1 is True, Statement 2 is False
•  Statement 1 is False, Statement 2 is True
Solution:
Q8. Statement 1: The conductivity of semiconductor increases with increase in temperature
Statement 2: The ionic solids conduct electricity due to presence of ions
•  Statement 1 is True, Statement 2 is True; Statement 2 is correct explanation for Statement 1
•  Statement 1 is True, Statement 2 is True; Statement 2 is not correct explanation for Statement 1
•  Statement 1 is True, Statement 2 is False
•  Statement 1 is False, Statement 2 is True
Solution:
Q9.Statement 1: The compressibility factor for H2 and He is [1+Pb/RT]
Statement 2: The compressibility factor for H2 and He can be derived from van der Waals’ equation.
•  Statement 1 is True, Statement 2 is True; Statement 2 is correct explanation for Statement 1
•  Statement 1 is True, Statement 2 is True; Statement 2 is not correct explanation for Statement 1
•  Statement 1 is True, Statement 2 is False
•  Statement 1 is False, Statement 2 is True
Solution:
Q10. Statement 1: At absolute zero temperature, vapour pressure, kinetic energy, and heat content of the gas reduce to zero
Statement 2: At absolute zero, temperature velocity reduces to zero
•  Statement 1 is True, Statement 2 is True; Statement 2 is correct explanation for Statement 1
•  Statement 1 is True, Statement 2 is True; Statement 2 is not correct explanation for Statement 1
•  Statement 1 is True, Statement 2 is False
•  Statement 1 is False, Statement 2 is True
Solution:

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STATES OF MATTER Quiz-14