मराठी

Define Sol and Give One Example. - Science

Advertisements
Advertisements

प्रश्न

Define Sol and give one example.

टीपा लिहा

उत्तर

Sol – Sol is a colloid in which tiny solid particles are dispersed in a liquid medium. Examples are ink and soap solution.

shaalaa.com
  या प्रश्नात किंवा उत्तरात काही त्रुटी आहे का?
पाठ 2: Is Matter Around Us Pure - Very Short Answers [पृष्ठ ८०]

APPEARS IN

लखमीर सिंह Chemistry [English] Class 9
पाठ 2 Is Matter Around Us Pure
Very Short Answers | Q 34.1 | पृष्ठ ८०

व्हिडिओ ट्यूटोरियलVIEW ALL [3]

संबंधित प्रश्‍न

The inter-molecular force is maximum in


What are molecules ?


What are the characteristics of matter?


In a beam of sunlight entering a room, we can sometimes see dust particles moving in a haphazard way in the air. Why do these dust particles move?


Bromine and air take about 15 minutes to diffuse completely but bromine diffuses into a vacuum very rapidly. Why is this so?


Fill in the following blanks with suitable words :

An element is made up of only one kind of ........


Which of the following statements are true for pure substances ?

  1. pure substances contain only one kind of particles
  2. pure substances may be compounds or mixtures
  3. pure substances have the same composition throughout
  4. pure substances can be exemplified by all elements other than nickel

Iron powder and sulphur powder were mixed together and divided into two parts A and B. When part A was heated strongly over a burner, then a substance C was formed. The part B was, however, not heated at all. When dilute hydrochloric acid was added to substance C, then gas D was evolved and when dilute hydrochloric acid was added to part B then gas E was evolved.

  1. What type of substance is B ?
  2. What type of substance is C ?
  3. Name the gas (i) D, and (ii) E ?
  4. State one characteristic property of gas D.
  5. Write one test to identify gas E.

How will you differentiate between a suspension and a colloid ?


Classify the following into solutions, suspensions and colloids :

Soda-water, Milk, Brine, Blood, Ink, Smoke in air, Chalk water mixture, Milk of Magnesia, Shaving cream, Muddy river water.


What will happen if a saturated solution is :

  1. heated
  2. cooled

Which of the following is not an emulsion ?


State whether the following statement are true or false :

Salt and water can be recovered from an aqueous salt solution by the process of evaporation.


How is water purified on a large scale at water works ? Explain with the help of a labelled diagram. Name the substance which is added to kill germs in the drinking water supply ?


A solid mixture contains four constituents P, Q, R and S. P consists of tiny grains and it is mixed with
cement for plastering the walls. Q is a white solid which is recovered on a large scale from sea water by the
process of evaporation. R is in the form of tiny particles of a material whose corrosion is called rusting. And
S is a white solid which is used in making ordinary dry cells.

  1. What could P, Q, R and S be ?
  2. How would you separate a mixture containing P, Q, R and S ?

Wipe the board with a duster and then tap the duster against the table. What do you see?


Define the term matter.


All the matter made of ______.


Stars including Sun are covered in ______.


In Aerosol the dispersed phase is liquid and the dispersion medium is gas.


Share
Notifications

Englishहिंदीमराठी


      Forgot password?
Use app×