Which one has dimensions different from the remaining three?

Find the rate of change of the total surface area of a cylinder of radius $r$ and height $h$,when the radius varies with respect to time $t$.

Which of the following pairs does not have similar dimensions?

$Pascal-Second$ has the dimension of:

The diameter and height of a cylinder are measured by a meter scale to be $12.6 \pm 0.1\, cm$ and $34.2 \pm 0.1\, cm$,respectively. What will be the value of its volume in appropriate significant figures?

Of the following quantities,which one has dimensions different from the remaining three?