Question

Calculate the degree of unsaturation in each of the following formulas:

b)DDT,${\mathrm{C}}_{14}{\mathrm{H}}_9{\mathrm{Cl}}_5$

Short answer

There are 8 degrees of unsaturation in DDT

Step-by-step solution

Degree of unsaturation

The degree of unsaturation is determined by counting the number of C, H, halogen atoms, and nitrogen atoms present in a molecule.From a chemical formula, we can determine the structure by calculating the degree of unsaturation.

The degree of unsaturation in DDT

b) The degree of unsaturation in DDT with chemical formula is calculated by the formula given below,

$$\begin{gathered} \mathrm{Degrees}\mathrm{of}\mathrm{unsaturation}=\frac{2\left(\mathrm{C}\right)-\mathrm{H}-\mathrm{X}+\mathrm{N}+2}{2} \\ =\frac{2\left(14\right)-9-5+0+2}{2} \\ =\frac{16}{2}=8 \end{gathered}$$

Here, X is a chlorine atom.

Thus, there are 8 degrees of unsaturation in DDT.