Final answer:
The index of hydrogen deficiency (IHD) for C7H10NBr is calculated as 3, indicating three degrees of unsaturation, which could mean the presence of aromatic, aliphatic, and conjugated unsaturations within the molecule.
Step-by-step explanation:
The student has asked to calculate the index of hydrogen deficiency (IHD) for the formula C7H10NBr and to select all types of unsaturation that might be present in the molecule based on the IHD.
To calculate the IHD, we will use the formula for unsaturation which is:
IHD = (2C + 2 + N - H - X)/2
Plugging the respective values from C7H10NBr into the formula, we get:
IHD = (2(7) + 2 + 1 - 10 - 1)/2
IHD = (14 + 2 + 1 - 10 - 1)/2
IHD = 6/2 = 3
Therefore, the IHD is 3, which indicates the presence of three degrees of unsaturation, such as double bonds or rings.
Based on the IHD, we can infer that the compound may contain:
- Aromatic unsaturation
- Aliphatic unsaturation
- Conjugated unsaturation
However, since the IHD is a general indication of unsaturation, the actual structure would be required to confirm the type of unsaturation.