Question

Number of atoms in 560 g of Fe (atomic mass 56 gmol-1) is :
(1) Twice that in 70 g N
(2) Half that in 20 g H
(3) Both (1) and (2)
(4) None of these​

Answer 1

$\huge{\mathcal{BONJOUR \: !!}}$

option 4 ✔️✔️