Question

A compound of molecular formula $C_6{H}_{12}{O}_3$ can not have:

Answer 1

Degree of unsaturation $=\frac{1}{2}[2\times C+2-H-X+N]$
$\text{X is halide (F, Cl, Br, I)}$
Degree of unsaturation of M.F.$C_6{H}_{12}{O}_3=\frac{1}{2}[2\times 6+2-12]=1$