हिंदी
सी.आई.एस.सी.ई.आईसीएसई ICSE Class 7

Give Reason Of When a Teaspoon of Sugar is Added to Half a Glass of Water and Stirred, the Water Level in the Glass Does Not Rise.

Advertisements
Advertisements

प्रश्न

Give reason  of When a teaspoon of sugar is added to half a glass of water and stirred, the water level in the glass does not rise.

टिप्पणी लिखिए
Advertisements

उत्तर

Add one teaspoon of sugar to it and stir. The sugar disappear but the level of water in the glass does not rise that means the volume of water has not increased. Because the sugar particles are adjusted between the water molecules. The shows that there are intermolecular gaps in water.

shaalaa.com
  क्या इस प्रश्न या उत्तर में कोई त्रुटि है?
अध्याय 1: Matter and Its Composition - Additional questions

APPEARS IN

सेलिना Concise Chemistry [English] Class 7 ICSE
अध्याय 1 Matter and Its Composition
Additional questions | Q 27.1

संबंधित प्रश्न

Define the following terms.

Atom


Write true or false for statement. Rewrite the false statement correctly.

Solids and liquids can flow.


 Gases

  1. cannot be compressed easily,
  2. occupy the entire space of the container.
  3. have definite shapes.
  4. cannot flow.

If an object weighs 6 N on earth what will be its weight on moon. What will be the change in its mass?


Write your observation and conclusion for the following

When one of the balloons suspended to the metre scale is punctured while other remains inflated ?


The state of matter which has no definite shape or volume is called


In which of the following conditions, the distance between the molecules of hydrogen gas would increase?

  1. increasing pressure on hydrogen contained in a closed container
  2. some hydrogen gas leaking out of the container
  3. increasing the volume of the container of hydrogen gas
  4. adding more hydrogen gas to the container without increasing the volume of the container

When a beam of sunlight enters a room through a window, we can see tiny particles X suspended in a gas (or rather a mixture of gases) Y which are moving rapidly in a very haphazard manner.

  1. What could particles X be ?
  2. Name the gas (or mixture of gases) Y.
  3. What is the phenomenon exhibited by particles X known as ?
  4. What is causing the movement of particles X ?
  5. What conclusion does the existence of this phenomenon give us about the nature of matter ?

A measuring cylinder is filled with water to a particular mark. A piece of solid is immersed inside the measuring cylinder. State why the level of water in the measuring cylinder will rise up. If the solid is removed, what will be the new level of the water in the measuring cylinder? Give a reason for your answer.


A glass beaker is half-filled with water and an empty glass tumbler is inverted & lowered inside the glass beaker. State your observations on tilting the tumbler below the level of the water in the glass beaker. Give a reason for your answer.


Share
Notifications

Englishहिंदीमराठी


      Forgot password?
Use app×