Question

The degree of unsaturation (double bond equivalent) for a compound with molecular formula \( \text{C}_{14}\text{H}_{12}\text{O}_2 \) is .......

Hint:

The degree of unsaturation tells you the number of rings and double bonds in a molecule. Calculate it using the formula \( \frac{2C + 2 - H}{2} \).

Answer 1

Correct Answer: 9

Step 1: Formula for degree of unsaturation.
The degree of unsaturation (DU) is calculated using the formula: \[ DU = \frac{2C + 2 - H}{2} \] Where \( C \) is the number of carbons and \( H \) is the number of hydrogens.

Step 2: Calculation.
For \( \text{C}_{14}\text{H}_{12}\text{O}_2 \), substituting into the formula: \[ DU = \frac{2(14) + 2 - 12}{2} = \frac{28 + 2 - 12}{2} = \frac{18}{2} = 9 \]

Step 3: Conclusion.
The degree of unsaturation is \( \boxed{9} \).