When a liquid is heated, the heat energy makes its particles move even faster.
The particles of a liquid will gain sufficient energy after heating to overcome the forces of attraction holding them together and move away from each other at greater speed. On constant heating, the liquid boils to form a gas.
Concluding statement
On heating, the particles will gain kinetic energy and break down the inter-particle force of attraction and start moving with great speed, which leads to changing their state from liquid to gas as well. Therefore, the given statement is true.