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States Of Matter Mock Tests

20 questions available

States Of Matter Mock Test 1

Questions: 20

Sample Questions

EAPCET Chemistry
Under identical conditions, 120 mL of SO₂ gas diffuses in 60 seconds. How long will 60 mL of O₂ take to diffuse under the same conditions? (Molar mass: SO₂ = 64 g/mol, O₂ = 32 g/mol)
A 30 s
B 42.4 s
C 21.2 s
D 60 s
EAPCET Chemistry
Which of the following intermolecular forces is present in HCl but not in Cl₂?
A Dipole-dipole forces
B Ion-dipole forces
C Hydrogen bonding
D London dispersion forces
EAPCET Chemistry
The van der Waals constant 'a' for NH₃ is greater than that for N₂. This indicates that:
A NH₃ has a larger molecular size than N₂
B NH₃ has stronger intermolecular attractive forces than N₂
C NH₃ is more compressible than N₂
D NH₃ has a higher critical temperature because of its higher molar mass
EAPCET Chemistry
Two identical cylinders A and B contain 2 moles of O₂ and 2 moles of CH₄ respectively at the same temperature and pressure. If the gas from cylinder B escapes twice as fast as from A, the ratio of the rate of diffusion of CH₄ to O₂ is (assuming ideal behaviour):
A √2 : 1
B 1 : √2
C 2 : 1
D 1 : 2
EAPCET Chemistry
Which of the following statements about the viscosity of liquids is CORRECT?
A Viscosity of liquids decreases with increase in temperature
B Viscosity is independent of temperature for both liquids and gases
C Viscosity of gases decreases with increase in temperature
D Viscosity of liquids increases with increase in temperature
EAPCET Chemistry
At high pressure, the compressibility factor Z of a real gas is approximately given by (where B is the second virial coefficient related to intermolecular attractions):
A Z = BP/RT
B Z = 1 + RT/BP
C Z = 1 - BP/RT
D Z = 1 + BP/RT
EAPCET Chemistry
According to Boyle's law, if a gas at 25°C occupies 2.5 L at 1 atm, what volume will it occupy at 2 atm (constant temperature)?___SEQ___20
A 1.25 L
B 5.0 L
C 2.5 L
D 0.5 L
EAPCET Chemistry
At high pressure, the compressibility factor Z = PV/nRT for a real gas described by the van der Waals equation (neglecting 'a') is:
A 1 − Pb/RT
B 1 + Pb/RT
C 1
D PV = nRT

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