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 chemistry nature of matter heterogenous mixture - colloidal solution and its properties suspensions and colloids mixtures

Smoke is an example of ?

  1. gas dispersed in liquid.

  2. gas dispersed in solid.

  3. solid dispersed in gas.

  4. solid dispersed in liquid.
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Smoke is a collection of small and tiny unburned particles. It actually contains more of fumes and chemicals. The smoke is visible to us in form of ash and carbon. It is kind of solid particle present or dispersed in the gas.

Multiple choice chemistry nature of matter heterogenous mixture - colloidal solution and its properties suspensions and colloids mixtures

Particles having size between 1 and 1000 nm dispersed in a medium is called a:

  1. colloid

  2. mixture

  3. suspension

  4. none of the above
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

A homogeneous looking heterogeneous mixture in which particles having a size between 1 and 1000 nm are dispersed in a continuous medium is called a colloid. Colloids are commonly called sols.


Hence. the correct answer is option $A$.

Multiple choice chemistry nature of matter heterogenous mixture - colloidal solution and its properties suspensions and colloids mixtures

The mixture in which one substance of microscopically dispersed insoluble particles is suspended throughout another substance is called _______.

  1. colloidal solution

  2. saturated solution

  3. unsaturated solution

  4. none of above
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

A colloid, in chemistry, is a mixture in which one substance of microscopically dispersed insoluble particles is suspended throughout another substance.
Examples of colloid are paint, milk, fog etc.

Multiple choice chemistry nature of matter heterogenous mixture - colloidal solution and its properties suspensions and colloids mixtures

Which is not lyophilic colloid?

  1. Milk

  2. Gum

  3. Fog

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

Fog is not a lyophilic colloid. Fog is a colloidal solution of liquid in a gas in which liquid is the dispersed phase whereas gas is the dispersion medium. Fog is a colloidal solution of liquid in a gas in which liquid is the dispersed phase whereas gas is the dispersion medium.

Multiple choice chemistry separation of substances classification of mixtures mixtures: examples and properties types of solutions

Which of the following is a mixture?

  1. Water

  2. Oxygen

  3. Carbon dioxide

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

A mixture consists of constituents in indefinite proportion. It may change over time. Air has 78% Nitrogen, 21% Oxygen and 1% other constituents such as CO2, water vapour etc. About 100 years ago proportion of CO2 in air was about 0.029% and now it is 0.035%. Thus we see that it's proportion has changed. Therefore, air is a mixture.

Multiple choice chemistry separation of substances classification of mixtures mixtures: examples and properties types of solutions

Which of the following is not a property of a mixture?

  1. Mixtures have definite set of properties

  2. Components in mixture retain their original properties

  3. The parts of mixture can be separated by physical means

  4. Mixtures do not have a sharp melting or boiling point
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

The important point regarding mixture is that it always retain the original property of its components, so mixture dont have any definite set of properties.

Multiple choice chemistry separation of substances classification of mixtures mixtures: examples and properties types of solutions

Which of the following is an example of mixture in which various constituents are mixed uniformly?

  1. Solution of salt in water

  2. Air

  3. Alloy

  4. All of the above
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Solution of salt in water, air, alloy are all examples of homogeneous mixture. They are formed by mixing different elements in to form a mixture which is in single state. Hence they are also called as homogeneous mixture.

Multiple choice chemistry separation of substances classification of mixtures mixtures: examples and properties types of solutions

What is a mixture?

  1. Substance with two or more different particles

  2. Substance that is insoluble

  3. Substance with a single homogenous particle

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

A substance which contains two or more different particles is known as mixtures. Example: the Salt solution is made up of two components, salt and water. Therefore, the salt solution is a mixture.


Hence, the correct option is $A$