Chemistry

1. Which one of the following is not a green house gas?

H₂O

N₂

O₃

CO₂

Question 1 of 15

2. If Z is the number of atoms in the unit cell that represents the closest packing sequence …. ABC ABC……., the number of tetrahedral voids in the unit cell is equal to:

Z/4

Z/2

Question 2 of 15

3. Which of the following compounds show sublimation?

CaCO₃

CaHPO₃

BaSO₄

NH₄C1

Question 3 of 15

4. The space lattice of graphite is

Hexagonal

Rhombic

Cubic

Tetragonal

Question 4 of 15

5. Which equation shows correct form of Berthelot equation?

(P + a/T(V + C)²) (V – b) = RT

(P + a/T(V – C)²) (V – b) = RT

(P + a/TV²) (V + b) = RT

(P + a/TV²)(V – b) = RT

Question 5 of 15

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

r ∝ M/√P

r = P/√M

r ∝ 1/√M

r = P/M

Question 6 of 15

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

Question 7 of 15

8. 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:

1.2 atm

3.6 atm.

2.4 atm

0.6 atm.

Question 8 of 15

9. A gas cylinder containing cooling gas can withstand a pressure of 14.9 atmosphere. The pressure gauge of cylinder indicates 12 atmosphere at 27°C. Due to sudden fire in the building the temperature starts rising. The temperature at which cylinder explodes is:

115.5°C

87.5°C

99.5°C

135.5°C

Question 9 of 15

10. Gold has a face centered cubic lattice with an edge length of the unit cube of 407 pm. Assuming the closest packing, the diameter of the gold atom is

576.6 pm

352.5 pm

287.8 pm

704.9 pm

Question 10 of 15

11. 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 11 of 15

12. An AB₂ type structure is found in

NaC1

CaF₂

N₂O²

A1₂O₃

Question 12 of 15

13. Which is not correct about the Schottky defects?

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

Because of presence of holes the lattice energy decreases.

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

Question 13 of 15

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

Tetrahedral voids

Half of octahedral voids

Octahedral voids

Half of tetrahedral voids

Question 14 of 15

Uncategorized

15. The volume-temperature graphs of a given mass of an ideal gas at constant pressure are shown below.

What is the correct order of pressures?

p₁ > p₃ > p₂

p₁ > p₂ > p₃

p₂ > p₁ > p₃

p₂ > p₃ > p₁

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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