मराठी

What Are the Three Groups into Which All the Elements Can Be Divided ? Name Two Elements Belonging to Each Group. - Science

Advertisements
Advertisements

प्रश्न

What are the three groups into which all the elements can be divided ? Name two elements belonging to each group.

टीपा लिहा
Advertisements

उत्तर

 All the elements can be divided into following three groups:

  1. Metals: Examples: Aluminium and copper
  2. Non-metals: Examples: Potassium and calcium
  3. Metalloids: Examples: Arsenic and antimony
shaalaa.com
  या प्रश्नात किंवा उत्तरात काही त्रुटी आहे का?
पाठ 2: Is Matter Around Us Pure - Very Short Answers [पृष्ठ ५७]

APPEARS IN

लखमीर सिंह Chemistry [English] Class 9
पाठ 2 Is Matter Around Us Pure
Very Short Answers | Q 32 | पृष्ठ ५७

व्हिडिओ ट्यूटोरियलVIEW ALL [3]

संबंधित प्रश्‍न

What are the conditions for 'something' to be called 'matter'?


Name two processes which provide the best evidence for the motion of particles in matter.


Out of solids, liquids and gases, which one has :

  1. maximum movement of particles ?
  2. maximum interparticle attractions ?
  3. minimum spaces between particles ?

Fill in the following blanks with suitable words :

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


State two physical properties on the basis of which metals can be distinguished from non-metals.


What is the concentration of a solution which contains 16 g of urea in 120 g of solution ?


A solution contains 5.6 mL of alcohol mixed with 75 mL of water. Calculate the concentration of this solution.


Define solvent.


In what respects does a true solution differ from a colloidal solution ?


Define Aerosol Give one example.


The solubility of ammonium chloride in water at various temperatures is given below :

Temperature : 10°C 20°C 40°C 60°C 80°C
Solubility : 24 g 37 g 41 g 55 g 66 g

What mass of ammonium chloride would be needed to make a saturated solution of ammonium chloride in fifty grams of water at 40°C ?


Name the process which can be used to recover salt from an aqueous salt solution.


Name the process by which common salt is purified.


How will you separate camphor, common salt and iron nails from their mixture ?


With the help of a labelled diagram, describe the method of separating ammonium chloride from a mixture of ammonium chloride and common salt. Mention the difference in the properties of ammonium chloride and sodium chloride which has made this separation possible.


The technique which is used to separate particles of a solid suspended in a liquid quickly is called :


The physical state of water at 373 K is ______.


Examples of foam are ______.


Evaporation is always accompanied by ______ in temperature. 


Define the term matter.


Share
Notifications

Englishहिंदीमराठी


      Forgot password?
Use app×