मराठी
सी.आई.एस.सी.ई.आयसीएसई ICSE Class 7

Name the Terms for the Change of Vapour into a Liquid.

Advertisements
Advertisements

प्रश्न

 Name the terms for the change of vapour into a liquid.

एक शब्द/वाक्यांश उत्तर
Advertisements

उत्तर

Condensation .

shaalaa.com
  या प्रश्नात किंवा उत्तरात काही त्रुटी आहे का?
पाठ 1: Matter and Its Composition - Exercise

APPEARS IN

सेलिना Concise Chemistry [English] Class 7 ICSE
पाठ 1 Matter and Its Composition
Exercise | Q 12.5

संबंधित प्रश्‍न

The inter-molecular space is maximum in


Explain why steel is used to make railway lines.


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


An inflated balloon full of air goes down slowly (becomes smaller and smaller slowly) even though the knot at the mouth of the balloon is airtight. And after a week all the air has escaped from the balloon. Explain how the air particles got out of the balloon.


Which of  the following are compounds ?

  1. CO
  2. No
  3. NO
  4. Co

There is a large group of materials P which can be divided into three groups Q, R and S on the basis of their properties. The substances belonging to group Q can be solids, liquids or gases. The solids belonging to group Q are usually electrical insulators. Most of the substances of group R are solids which are good conductors of electricity. The substances belonging to group S are neither insulators like Q nor good conductors like R. The properties of S are intermediate between those of Q and R.

  1. What could the group of materials P be ?
  2. Name the substances Q. Give two examples of such substances.
  3. Name the substances R. Write two examples of such substances.
  4. Name the substances S. Give two examples of such substances.
  5. Out of Q, R and S, which substances are malleable and ductile ?

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.


9.72 g of potassium chloride dissolves in 30 g of water at 70°C. Calculate the solubility of potassium chloride at that temperature.


Name the process which can be used to purify an impure sample of copper sulphate.


How will you separate a mixture of iron filings, chalk powder and common salt ?


Naphthalene can be separated from sand :


You are given a mixture of iodine in alcohol called tincture iodine. Which method will you use to recover both, iodine as well as alcohol, from this mixture ?


Write a few lines on the blackboard with a chalk. Now observe the chalk. What changes do you see in the chalk?


Complete the given analogy.

Murukku from hot oil: ______:: Coffee powder residue from decoction: ______


Rusting of an article made up of iron is called


Gases do not diffuse very easily.


Compressibility of solids: ______.


Gas-solid is ______.


Define the term matter.


Share
Notifications

Englishहिंदीमराठी


      Forgot password?
Use app×