Knitting of wool is a.
Physical change
Chemical change
Both of the above
None of the above
Which of the following given below is not an example of irreversible change?
Cooking of food
Ripening of fruit
Blooming of flowers
Melting of chocolate
Cooking of food is a .
The process of converting liquid to vapours is called
Condensation
Evaporation
Rusting
Freezing
The process of converting vapours to liquid is called
What will happen to solubility with an increase in temperature?
Increases
Decreases
Remains the same
May increase or decrease
Which of the following is a chemical change?
Rusting of iron
Knitting of wool
The process of forming new types of molecules by chemical changes is called
Chemical reaction
Evaporation is a:
Permanent change
Rusting of iron is a
