Chemistry · Science General

States of Matter

2,382 Questions

States of matter questions explore physical changes, evaporation, phase transitions, and the properties of liquids and gases. Topics cover density, cryosurgery, heavy water, and electrolytes. This foundational chemistry topic frequently appears in general science sections of SSC and railway exams.

Phase change mechanismsEvaporation and temperature effectsProperties of liquidsPhysical versus chemical changesElectrolytes and heavy water

States of Matter Questions

Multiple choice

Dry ice is

  1. super-cooled ice.

  2. solid water with zero humidity.

  3. solid carbon dioxide.

  4. solidified ammonia.
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Solid carbon dioxide is known as dry ice.

Multiple choice

Fruit juice is

  1. a true solution

  2. a homogeneous mixture

  3. a heterogeneous mixture

  4. a colloid
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Ans : 4.

Multiple choice

Vacuum is actually

  1. gas

  2. liquid

  3. empty space

  4. None of the above
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

A vacuum is an empty space with very low pressure - essentially absence of matter. It's the absence of gas, liquid, or solid particles.

Multiple choice

Milk is a good example of

  1. zeolite

  2. emulsion

  3. elastic gels

  4. non-elastic gels

Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Emulsion are the colloidal solutions in which both the dispersed phase and the dispersion medium are liquids. A good example of an emulsion is milk in which fat globules are dispersed in water. The size of the emulsified globules is generally of the order of 10-6 m. Emulsion resembles lyophobic sols in some properties.

Multiple choice

The hexadecane or cetyl alcohols are the examples of

  1. water-in-water emulsion

  2. microemulsions

  3. miniemulsion

  4. pickering emulsion

Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

A miniemulsion is a special case of emulsion. A miniemulsion is obtained by shearing a mixture comprising two immiscible liquid phases, one surfactant and one co-surfactant. Typical examples are hexadecane or cetyl alcohol.