Advertisements
Advertisements
Question
When a stone is dipped in a glass containing some water, the level of water rises but when a spoon of sugar is added to it and stirred, the water level does not rise?
Advertisements
Solution
When a stone is dipped in a glass of water, the water level rises because the stone is a bigger object that cannot be dissolved and adjusted between the water's intermolecular gaps. However, when a spoonful of sugar is added and stirred, the water level does not rise because the sugar particles are smaller and move between the intermolecular spaces in water molecules.
APPEARS IN
RELATED QUESTIONS
Give reasons for the following observation:
The smell of hot sizzling food reaches you several metres away, but to get the smell from cold food you have to go close.
How will you prove by an experiment that solids occupy space ?
Give reason:
Why do liquids and gases flow but solids do not ?
Fill in the blank:
Water is a matter because it has mas and occupies....................
Write whether the following statement is true or false.
Intermolecular force of attraction is greater in gases than in liquids.
For the following statement, say whether it describes a solid, a liquid or a gas.
Particles are far apart and move in all directions.
Fill in the blank
Molecules in a ________ are packed very closely.
Explain the following :
When an incense stick is lighted in the corner of a room, its fragrance spreads quickly in the entire room.
Which of the following statement is incorrect?
Complete the statement by filling the blank with the correct word given below.
In naphthalene, the inter-particle attraction is _______.
