JEE Mains · Chemistry · STD 11 - 1. Some basic concept of chemistry
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 Pt
- A Po
- B Pr
- C Pb
- D Pt
Answer & Solution
Correct Answer
(B) Pr
Step-by-step Solution
Detailed explanation
\(\text { No. of atoms }=\frac{\text { Massin } g}{\operatorname{Molar} \operatorname{Mas}(\mathrm{~g} / \mathrm{mol})} \times \mathrm{N}_{\mathrm{A}}\) Therefore for the same Mass element having the least Molar mass will have the higher no. of atoms. -…
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