Tag: composition of matter

Quizzes (15) Questions (47)

Questions Related to composition of matter

Multiple choice chemistry composition of matter heterogeneous mixture - suspension and its properties suspension types of mixture

Suspension shows Tyndall effect because of :

  1. large size of particles

  2. small size of particles

  3. their settling down nature

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

Suspension shows Tyndall effect because of their large size of particles. Particles of suspension are large enough to scatter rays of light and path of ray is visible through a suspension. 

Multiple choice chemistry composition of matter heterogeneous mixture - suspension and its properties suspension types of mixture

Which of the following is intermediate between suspension and solution?

  1. Mixture

  2. Colloid

  3. Element

  4. Solvent
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Colloidal solutions are heterogeneous mixture of two or more substances. They appear homogeneous. The size of colloids is between the size of particles of solution and suspension, i.e., between 1 nanometer to 1000 nanometer.

Multiple choice chemistry composition of matter heterogeneous mixture - suspension and its properties suspension types of mixture

Apparatus used to sediment particles in supension is : 

  1. centrifuge

  2. barometer

  3. balance

  4. calorimeter

  5. battery
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Apparatus used to sediment particles in supension is centrifuge.
Calorimeter is used to measure the heat absorbed or released by a reaction.
Barometer is used to measure pressure.
Balance is used to measure weight of a substance.
Battery is used to provide electricity.

Multiple choice chemistry composition of matter heterogeneous mixture - suspension and its properties suspension types of mixture

Powder coating is a process which requires a solvent to keep the binder and filler parts in a liquid suspension form.

  1. True

  2. False
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

The main difference between a conventional liquid paint and a powder coating is that the powder coating does not require a solvent to keep the binder and filler parts in a liquid suspension form while liquid paints require.

Multiple choice chemistry composition of matter heterogeneous mixture - suspension and its properties suspension types of mixture

Colour of colloids depends on which of the following factors?

  1. Size

  2. Mass

  3. Charge

  4. Nature
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Colour of colloidal solution depends upon particle size.
The colour of colloidal solution changes with size of particle, eg, as particle size increases, the colour of gold solution changes from red to blue and finally to golden.