Chemistry States of Matter Test Online Mcqs Preparation

Chemistry States of Matter Test Online Mcqs Preparation With Answers Start Below

Show paginator

Hide paginator

Question 1 of 15

1. Vapor pressure of a liquid depends upon the following:

A. Surface area and temperature only

B. Humidity of the liquid in the air

C. Volume of the liquid

D. Temperature and the inter-molecular forces

Question 1 of 15

Question 2 of 15

2. The molecules of gas show more deviation from ideal behavior at low temperature, because

A. Attractive force dominate at low temperature

B. Densitise of the gases increase

C. Collision become less frequent

D. Kinetic energies

Question 2 of 15

Question 3 of 15

3. 110°C boiling water of water corresponds to the external pressure:

A. Between 200 to 760 torr

B. Any value of pressure

C. Between 760 to 1200 torr

D. 765 torr

Question 3 of 15

Question 4 of 15

4. Lower alcohols inspite of being organic are soluble in water because:

A. Dipole induced dipoles

B. All of the above

C. Low electro-negativity difference between C and H

D. Intermolecular hydrogen bonding

Question 4 of 15

Question 5 of 15

5. Gases deviate from ideal behavior at high pressure. Which of the following is correct for non-ideality:

A. At high pressure, the gas molecules move in one direction only

B. At high pressure, the collision between the gas molecules are increased manifold

C. At high pressure, the inter-molecular attractions become significant

D. At high pressure, the volume of the gas becomes insignificant

Question 5 of 15

Question 6 of 15

6. The boiling point of compound is mostly raised by

A. Intra molecular Hydrogen bonding

B. Dipole induced dipole interaction

C. London dispersion forces

D. Inter molecular hydrogen bonding

Question 6 of 15

Question 7 of 15

7. Evaporating water depends upon the following:

A. Surface area and intermolecular forces

B. Speed of the air above the liquid surface

C. Humidity in air

D. All of these

Question 7 of 15

Question 8 of 15

8. The boiling point of H₂O is 100°C while that of C₂H₅OH is 78.5°C. The reason is that

A. H2O molecules are small sized

B. The number of hydrogen bonds per H2O molecule are greater than C2H5-OH

C. C2H5 group is electron donating

D. The bond angles at oxygen atom are different

Question 8 of 15

Question 9 of 15

9. Ammonia shows the maximum boiling point among the hydrides of 5^th group because:

A. Lone pair of electrons present on nitrogen

B. Pyramidal structure of ammonia

C. Enhanced electro-negativity character of nitrogen

D. Very small size of nitrogen

Question 9 of 15

Question 10 of 15

10. In a closed vessel of 1000 cm³, H₂ gas is heated from 27°C to 127°C. Which statement is not correct?

A. Pressure of gas increases

B. The rate of collision increases

C. The number of moles of gas increases

D. The energy of gas molecules increases

Question 10 of 15

Question 11 of 15

11. Evaporation is designated as a cooling process because of the reason:

A. It involves heat absorption

B. High energy molecules leave behind the low energy molecules and cause cooling

C. All of the above

D. It is a surface phenomenon

Question 11 of 15

Question 12 of 15

12. The crystals formed due to London forces of interaction are

A. Metallic

B. Ionic

C. Molecular

D. Covalent

Question 12 of 15

Question 13 of 15

13. Partial pressure of oxygen in the lungs is

A. 159 torr

B. 116 torr

C. 760 torr

D. 50 torr

Question 13 of 15

Question 14 of 15

14. The crystal of diamond is

A. Covalent

B. Metallic

C. Molecular

D. Ionic

Question 14 of 15

Question 15 of 15

15. Which one is the form of general gas equation

A. All of these

B. P1V1/T1 = P2V2/T2

C. PV = nRT

D. PV = RT

Question 15 of 15

Chemistry States of Matter Test Online Mcqs Preparation

Chemistry States of Matter Test Online Mcqs Preparation With Answers Start Below

Related Study Posts:

Leave a Comment Cancel reply