Two extremely smooth metal surfaces have negligible friction between them.
On one hand you say that when two smooth, even surfaces slide over each other, there is adhesion between them which causes friction. On the other you say that there is no friction between two smooth surfaces. I'm not getting.
Mark the word SMOOTH.
If two pieces of same metal having Ultra smooth surfaces are kept in contact comment on the friction between two surfaces when we try to move one on the other justify your answer with proper reasons.
How do F1 cars manage to develop friction even though they don't have treading