Can a quantity having dimensions may have no units ?

Can a quantity have dimensions but still has no units?

Can a physicl quantity have dimensions but no units?

can a quantity have dimension , but no unit ?

A : A dimensionless quantity may have unit. R : Two physical quantities having same dimensions, may have different units.

A : A dimensionless quantity may have unit. R : Two physical quantities having same dimensions, may have different units.

Can a quantity have dimesions, but no unit ?

Do the quantities having same dimensions always have same units?

Do the quantities having same dimensions always have same units?