Question

The number of moles of '$X$ ' atoms in $93$ gm of 'X' are:

(Molecular Weight of $X=31$ g/mole)

• A. $3$
• B. $3.5$
• C. $4$
• D. $2$

Answer 1

The correct option is A $3$

As we know,
Number of moles of $X$$=w/MolecularWeight$
So the number of moles of $X$ $=\frac{93}{31}=3$