Question

Which of the following is not a unit of density?

(a) Kg/m^3

(b) N/m^3

(c) N.s^2/m^4

(d) g/cm^3

This question was addressed to me in an online quiz.

This interesting question is from Density topic in division Moles, Density & Concentration of Basic Chemical Engineering

Answer 1

Right option is (b) N/m^3

To elaborate: Dimensions of density are M^1L^-3, which is not the dimension of N/m^3, so N/m^3 is not the unit of density.