Could you draw the rings too 1. Calculate the Index of Hydrogen Deficiency (IHD; also known as degree of unsaturation) for the followingmolecular formulas and place your response in the designated box. Then answer part (d).— [12-8) +2-14)a. C8H₁40a. IHD= = 2(2-6) +2-5-1 b. C₂H5Clb. IHD = 4{[(2·6)+2+¹ °C. C6H¬Nc. IHD = 4d. Propose two different combinations of bonding features to account for an IHD of 4 in a moleculeconsisting of C and H atoms and one O atom only (i.e. C,H,O). For example, a molecule withmolecular formula CxHyO and IHD = 2 may have one C=O bond and one ring (this is an example ofone combination). For this exercise, do not propose more than one ring.CxHyO, IHD = 4, combination 1CxHyO, IHD = 4, combination 2

The index of hydrogen deficiency which is also identified as the degree of unsaturation is a parameter that is used to indicate the extent of unsaturation in a compound.The expression to calculate the index of hydrogen deficiency (IHD) is represented as follows-Here, X is identified as halogen (F, Cl, Br, I)a. The value of IHD for C8H14O is calculated as follows-b. The value of IHD for C6H5Cl is calculated as follows-c. The value of IHD for C6H7N is calculated as follows-d. The IHD value for a molecule will be the sum of the number of multiple bonds and the number of rings present in a molecule.An index of hydrogen deficiency (IHD) value of 4 suggests that the total number of rings and multiple bonds in the compound will be 4.One possible combination of CxHyO with IHD 4 can have one ring and 3 C=C double bonds. A possible molecule is phenol with a molecular formula of C6H6O. The structure is shown as follows-Another combination is one ring, two C=C bonds, and one C=O bond. One such possible structure can be represented as follows-The molecular formula of the above compound is C6H8O.a. The IHD for C8H14O is 2b. The IHD for C6H5Cl is 4.c. The IHD for C6H7N is 4d. One possible combination of CxHyO with IHD 4 can have one ring and 3 C=C double bonds. A possible structure is shown as follows-Another combination is one ring, two C=C bonds, and one C=O bond. One possible structure can be represented as follows-