The process of forming new types of molecules by chemical changes is called
Condensation
Chemical reaction
Evaporation
Rusting
Which is the universal solvent?
Water
Kerosene
Sulphuric acid
Turpentine
Tearing of paper is a
Physical change
Chemical change
Both of the above
None of the above
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 of the following is a chemical change?
Rusting of iron
Knitting of wool
What will happen to solubility with an increase in temperature?
Increases
Decreases
Remains the same
May increase or decrease
Rusting of iron is a
Cooking of food is a .
Which of the following is a physical change?
Dissolving solid in water
Cooking food
Burning of paper
The solubility of solute depends on
Temperature
Pressure
Melting point
Boiling point
