Chemistry

1. For the diffusion of a gas at pressure P, the rate of diffusion is expressed by:

r ∝ 1/√M

r ∝ M/√P

r = P/√M

r = P/M

Question 1 of 15

2. What is the coordination number of sodium in Na₂O?

Question 2 of 15

3. Schottky defect defines imperfection in the lattice structure of

Plasma

Gas

Liquid

Solid

Question 3 of 15

4. In P versus V graph, the horizontal line is found in which _________ exits.

Super critical temperature

Liquid

Equilibrium between gas and liquid

Gas

Question 4 of 15

5. Amongst the following statements, the correct one is:

The gas cannot be compressed below the critical temperature

An ideal gas has a characteristic critical temperature.

At critical temperature liquid and gaseous phase can be distinguished.

Below critical temperature, thermal motion of the molecules is slow enough for the intermolecular forces to come into play leading to condensation of the gas.

Question 5 of 15

6. Which is not correct about the Schottky defects?

Because of presence of holes the lattice energy decreases.

The presence of holes causes the density of the crystal to decrease

Both cations and anions are missing from their lattice sites without affecting the stoichiometry of the compound

The defect increases the electrical conductivity of the solid due to migration of the ions into the holes.

Question 6 of 15

7. If P is pressure and ρ is density of a gas, then P and ρ are related as

P∝ ρ (1/ρ)

P∝ (1/ρ)

P∝ ρ²

P∝(1/ρ²)

Question 7 of 15

8. Which equation shows correct form of Berthelot equation?

(P + a/T(V + C)²) (V – b) = RT

(P + a/TV²)(V – b) = RT

(P + a/T(V – C)²) (V – b) = RT

(P + a/TV²) (V + b) = RT

Question 8 of 15

9. Van der Waal’s equation [P+a/V²](V-b)= nRT is applicable for:

Both (a)and(b)

Ideal gas

None of these

Non-ideal gas

Question 9 of 15

10. The Ca²⁺ and F⁻ are located in CaF₂ crystal, respectively at face centre cubic lattice points and in

Half of tetrahedral voids

Octahedral voids

Half of octahedral voids

Tetrahedral voids

Question 10 of 15

11. The space lattice of graphite is

Tetragonal

Rhombic

Cubic

Hexagonal

Question 11 of 15

12. The coordination number in hcp is

Question 12 of 15

13. At 298 K, equal volumes of SO₂, CH₄ and O₂ are mixed in empty container. The total pressure exerted in 2.1 atm. The partial pressure of CH₄ in mixture is:

0.6 atm.

2.4 atm

3.6 atm.

1.2 atm

Question 13 of 15

14. Dominance of strong repulsive forces among the molecules of the gas (Z = compressibility factor):

Is independent of Z

Depends on Z and indicated by Z = 1

Depends on Z and indicated by Z < 1

Depends on Z and indicated by Z > 1

Question 14 of 15

15. The compressibility factor of an ideal gas is:

Question 15 of 15

Test Name	Solid & Gaseous State MCQs Test
Subject	Chemistry
Test Type	MCQs
Total Question	15
Total Marks	30
Total Time	15 Mints
Test Help For	Chemistry Subject Test. All Jobs tests Prep. BDS Test Preparation. Engineering Test Prep. B Tech Test preparation.

Test By Subject	Chemistry
Test By Topics	Chemistry Subject

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Solid & Gaseous State Test Online MCQs

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