Which of the following is different from the others in terms of units?

Which of the following pairs does not have the same dimensions?

How much energy in $kWh$ is obtained by eating an ice cream labeled as $700 \ kcal$?

State,for each of the following physical quantities,if it is a scalar or a vector: volume,mass,speed,acceleration,density,number of moles,velocity,angular frequency,displacement,angular velocity.

If the unit of length and force be increased four times,then the unit of energy is

Match List-$I$ with List-$II$.

List-$I$	List-$II$
$(A)$ Torque	$(I)$ $kg\,m^{-1}\,s^{-2}$
$(B)$ Energy density	$(II)$ $kg\,m\,s^{-1}$
$(C)$ Pressure gradient	$(III)$ $kg\,m^{-2}\,s^{-2}$
$(D)$ Impulse	$(IV)$ $kg\,m^2\,s^{-2}$

Choose the correct answer from the options given below: