Question

On a smooth glass surface , the drop of water spreads while the drop of mercury remains almost spherical. This proves that ________?
A. Cohesive forces of mercury is more than adhesive forces with glass
B. Cohesive force of water is less than cohesive forces of mercury
C. mercury is a metal
D. 1 & 2

Answer 1

C is my answer and a reason for us to use ir in thermometers