Among ${10}^{-9}\mathrm{g}$ (each) of the following elements, which one will have the highest number of atoms? Element : $\mathrm{Pb},\mathrm{Po},\mathrm{Pr}$ and $\mathrm{Pt}$ [JEE Main 2025, 3 Apr (Shift 1)]

Question

YESPYQ · Accepted Answer

Correct answer: b) Pr. For the same mass, element having the least Molar mass will have the higher no. of atoms. M.M Po = 209 g mol -1 M.M Pr = 141 g mol -1 M.M Pb = 207 g mol -1 M.M Pt = 195 g mol -1

Among \({10}^{-9}\mathrm{g}\) (each) of the following elements, which one will have the highest number of atoms? Element…

Practice more JEE Chemistry PYQs