EASY
7th ICSE
IMPORTANT
Earn 100

Name the process in which heat is liberated during a change. (Endothermic process/ Exothermic process)

50% studentsanswered this correctly

Important Questions on Physical and Chemical Changes

MEDIUM
7th ICSE
IMPORTANT
During a chemical change, energy is either evolved or absorbed. In which form is this energy seen?
EASY
7th ICSE
IMPORTANT
Define the term endothermic changes.
MEDIUM
7th ICSE
IMPORTANT
State whether rusting of iron is a physical or a chemical change? How can you prevent rusting of iron?
MEDIUM
7th ICSE
IMPORTANT
Is an earthquake a periodic or non-periodic change? Give reasons. Also mention some of the losses that occur due to earthquakes.