The physical change can be reversed by changing the conditions in most cases.

There may or may not be a change in the energy possessed by the original substance in a physical change.

There is a change in energy when sugar is dissolved in water.

Both boiling and evaporation are physical changes as no new substance is formed and both the processes can be easily reversed by changing the temperature.

During condensation, the temperature decreases.

In a chemical change, the molecules of original substances undergo change to form molecules of new substances, having same properties.

Chemical changes involve making new chemical bonds between the rearranged atoms to form new substances.

There is a change in the mass of the substance undergoing a chemical change.

Which of the following does caramelised sugar transform into?

Which gas is released when zinc granules are burned in dilute HCl?

A solid can be obtained from a liquid by which of the following process?

Which of the following process is responsible for formation of clouds and rain?