हिंदी

Name One Pair of Liquids Which Can Be Separated by Using a Separating Funnel. - Science

Advertisements
Advertisements

प्रश्न

Name one pair of liquids which can be separated by using a separating funnel.

टिप्पणी लिखिए

उत्तर

Kerosene and water are two immiscible liquids which can be separated by using a separating funnel.

shaalaa.com
  क्या इस प्रश्न या उत्तर में कोई त्रुटि है?
अध्याय 2: Is Matter Around Us Pure - Very Short Answers [पृष्ठ १०५]

APPEARS IN

लखमीर सिंग Chemistry [English] Class 9
अध्याय 2 Is Matter Around Us Pure
Very Short Answers | Q 11 | पृष्ठ १०५

वीडियो ट्यूटोरियलVIEW ALL [3]

संबंधित प्रश्न

What are the two conditions for the interconversion of states of matter ?


Explain why air is used to inflate tyres.


Explain why steel is used to make railway lines.


When extremely small particles X derived from the anther of a flower were suspended in a liquid Y and observed through a microscope, it was found that the particles X were moving throughout the liquid Y in a very zig-zag way. It was also observed that warmer the liquid Y, faster the particles X moved on its surface.

  1. What could particles X be ?
  2. What do you think liquid Y is ?
  3. What is the zig-zag movement of X known as ?
  4. What is causing the zig-zag movement of particles X ?
  5. Name the scientist who discovered this phenomenon.
  6. What does this experiment tell us about the nature of liquid Y?

What is meant by saying that metals are sonorous ?


Fill in the following blanks with suitable words :

Brass is an alloy which is considered a ..............


Classify the following into elements, compounds and mixtures :

arble, Air, Gold, Brass, Sand, Diamond, Graphite, Petroleum, Common salt, Sea-water, Chalk


Draw a flow-chart for the schematic representation of different types of matter.


You have been given a suspension and a solution. How could you tell the difference between them by their appearance ?


Define Aerosol Give one example.


Define solubility of a substance. How does it vary with temperature ?


When the solid A is added to water, it dissolves with the evolution of a lot of heat and making little explosions to form two products B and C. The properties of products B and C are entirely different from those of solid A as well as water. Moreover, products B and C cannot be reconverted into solid A and water. When another solid D is added to water, it dissolves with the absorption of a little heat to form a product E which cools down. The product E shows the properties of both, solid D as well as water. Moreover, product E can be converted into solid D and water.

(a) What type of change occurs when solid A is dissolved in water ? Why ?

(b) What type of change occurs when solid D is dissolved in water ? Why ?

(c) Name a metal which you think could behave like solid A. Also name the products B and C.

(d) Name the solid D if it is the one which is used in making ordinary dry cells.

(e) Name the process by which D can be recovered from E.


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.


Fill in the following blanks with suitable words :

Immiscible liquids are separated by using a .....................


How is cream separated from milk ?


How can you obtain pure water from a salt-water mixture (or salt-solution) ? Draw a neat and labelled diagram of the apparatus you would use to obtain pure water from a salt-water mixture (or salt-solution).


Which of the following mixture cannot be separated by using water as the solvent ?


Which of the following cannot be separated from air by the process of fractional distillation ?


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 ?

Gas-solid is ______.


Share
Notifications

Englishहिंदीमराठी


      Forgot password?
Use app×