The empirical formula and molecular mass of a compound are ${\mathrm{CH}}_2\mathrm{O}$ and $180 \mathrm{g}$ respectively. The molecular formula of the compound will be

As we know that, the Molar mass of Carbon=12

Molar mass of Hydrogen=1

Molar mass of Oxygen=16

Empirical formula mass $={\mathrm{CH}}_2\mathrm{O}=12+2+1\times 16=30$

Molecular mass $=180$

$n=\frac{\text{ Molccular Mass }}{\text{ Empirical formula mass }}=\frac{100}{30}=6$

$\because$ Molecular formula $=\mathrm{n}\times$ empirical formula

$\therefore$ Molecular formula $=6\times {\mathrm{CH}}_2\mathrm{O}={\mathrm{C}}_6{\mathrm{H}}_{12}{\mathrm{O}}_6$