मराठी

Describe in Your Own Words, What Happens to the Particles When Salt Dissolves in Water. - Science

Advertisements
Advertisements

प्रश्न

Describe in your own words, what happens to the particles when salt dissolves in water.

टीपा लिहा
Advertisements

उत्तर

Both salt and water are made up of tiny particles that are invisible under the microscope. When salt dissolves in water, the tiny salt particles occupy the spaces between the water particles and mix with them, thus giving a salty taste to the water. When we mix salt with water there is no increase in the volume of water, as the salt particles take up the inter-molecular spaces of water.

shaalaa.com
  या प्रश्नात किंवा उत्तरात काही त्रुटी आहे का?
पाठ 1: Matter in Our Surroundings - Very Short Answers [पृष्ठ १९]

APPEARS IN

लखमीर सिंह Chemistry [English] Class 9
पाठ 1 Matter in Our Surroundings
Very Short Answers | Q 29 | पृष्ठ १९

व्हिडिओ ट्यूटोरियलVIEW ALL [3]

संबंधित प्रश्‍न

Fill in the blank :

The substances which can flow are called ________


Name one solid, one liquid and one gaseous non-metal.


Classify the following into elements and compounds :

  1. H2O
  2. He
  3. Cl2
  4. CO
  5. Co

What are the two types of pure substances? Give one example of each type.


Name two solid, two liquid and two gaseous elements at the room temperature.


What are the three general classes of matter ? Give one example of each type.


State whether colloidal solutions are homogeneous or heterogeneous.


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


State whether the following statement are true or false :

Alcohol can be separated from a mixture of alcohol and water by a separating funnel.


Name the source from which nitrogen and oxygen are obtained on a large scale.


Name the process which is used in milk dairies to separate cream from milk.


Name the process by which common salt is obtained from sea-water.


The liquid air has three components X, Y and Z whose boiling points are : –186°C, –183°C and –196°C,
respectively. When liquid air is fed into a tall fractional distillation column from near its bottom and warmed
up slowly :

(a) Which component will be collected from near the bottom of the fraction distillation column ? Why ?

(b) Which component will be collected from the top part of the fractional distillation column ? Why ?

(c) Which component will be collected from the middle part of the fractional distillation column ? Why ?

(d) What could the component X, Y and Z be ?


______ is not made of matter.


Define the term matter.


Justify your answer.

Figure 1 Figure 2 Figure 3

The arrangement of particles in three different phases of matter is shown above.

  1. Which state is represented by Fig. 1?
  2. In which state will the inter-particle attraction be maximum?
  3. Which one of them cannot be contained in an open vessel?
  4. Which one can take the shape of its container?

The movement of particles in liquids is ______.


The phenomenon of Evaporation takes place at the ______ of a liquid.


Define the term matter.


Share
Notifications

Englishहिंदीमराठी


      Forgot password?
Use app×