What is the index of hydrogen deficiency (or degree of unsaturation)of the following molecule?

Question

Quizplus · Accepted Answer

The index of hydrogen deficiency (IHD) or degree of unsaturation can be calculated by the formula IHD = (2n+2) - (h+x), where n is the number of carbons, h is the number of hydrogens, and x is the number of halogens present (halogens are considered equivalent to hydrogens in this calculation).

For the given molecule, we can count 8 carbons, 10 hydrogens, and 1 halogen (bromine).

Plugging these values into the formula, we get IHD = (2*8+2) - (10+1) = 16 - 11 = 5.

Therefore, the answer is C) 4, since that is the only option that matches the calculated IHD value of 5.

What Is the Index of Hydrogen Deficiency (Or Degree of Unsaturation)of