The index of hydrogen deficiency for C₇H₆Br₄O₂ is 3.

Question

Quizplus · Accepted Answer

The formula has 17 carbons and 1 nitrogen, which gives a maximum possible number of hydrogens of (17x2) + 1 + 1 - 1 = 35. The actual number of hydrogens present in the formula is 23, giving a difference of 12. To calculate the index of hydrogen deficiency, add the number of double bonds and rings (aromatic or non-aromatic) to this difference and divide by 2. In this case, there are 3 double bonds (C=C) and no rings, giving an index of hydrogen deficiency of (3 + 12)/2 = 7. However, the question only asked for the index of hydrogen deficiency for a specific part of the formula, which is C₇H₆Br₄O₂. This part has 10 carbons and 3 double bonds (C=C), giving an index of hydrogen deficiency of (3 + (10x2 - 22))/2 = 3. Therefore, the answer is A (True).

The Index of Hydrogen Deficiency for C7H6Br4O2 Is 3

The Index of Hydrogen Deficiency for C₇H₆Br₄O₂ Is 3