Question

generally on heating metals _________​

Answer 1

Answer :-

Generally, on heating a metal the metal expands.

Explanation :-

When a material is heated, the kinetic energy of that material increases and its atoms and molecules move about more portion or space. This means that each atom will take up more space due to its movement so the material will expand. Most solids expand when heated and contract when cooled.

Answer 2

The metal expands
Is the answer to the question