Dissolving sugar or salt in water is a
Physical change
Chemical change
Both of the above
None of the above
Which of the following given below is an example of reversible change?
Evaporation of water
Cooking of food
Ripening of fruit
Blooming of flowers
The process of converting vapours to liquid is called
Condensation
Evaporation
Rusting
Freezing
Tearing of paper is a
What happen to icebergs in water?
They floats
They sinks
They dissolves
They increase in size
Which of the following given below is not an example of irreversible change?
Melting of chocolate
In a chemical change
Energy is given out
Energy is absorbed
Energy is neither given out nor absorbed
Energy is either absorbed or given out
Which is the correct statement?
The solubility of sugar in water is more than the solubility of salt in water.
The solubility of sugar in water is less than the solubility of salt in water.
The solubility of sugar in water is equal to the solubility of salt in water.
The solubility of sugar in water is sometimes less and sometimes more than the solubility of salt in water.
Burning of paper is a
Cooking of food is a .
