Advertisements
Advertisements
प्रश्न
Describe in your own words, what happens to the particles when salt dissolves in water.
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.
APPEARS IN
संबंधित प्रश्न
Intermolecular force of attraction is maximum in ............ less in .......... and the least in .............
What are molecules ?
Define the following term of Atom .
Name one solid, one liquid and one gaseous non-metal.
Name a metal which has no fixed shape.
What is meant by (i) elements (ii) compounds, and (iii) mixtures ?Write down the names of two elements, two compounds and two mixtures.
Which of the two will scatter light : soap solution or sugar solution ? Why ?
What is the most common way of expressing the concentration of a solution ?
What is the difference between solutions and colloids ?
Which one of the following is not a chemical change ?
Name the process by which all the dye can be recovered from black ink.
How will you separate iron pins from sand ?
How will you separate camphor, common salt and iron nails from their mixture ?
Pure copper sulphate can be obtained from an impure sample by the process of :
Complete the given analogy.
Murukku from hot oil: ______:: Coffee powder residue from decoction: ______
Define the term matter.
What type of matter glass is?
The most reactive metal is ______.
Solids do not flow.
Give an example of a molecule.
