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- For each pair of compounds, predict the one with a higher boiling point. Which compoundshave zero dipole moments?(a) cis-1,2-dichloroethene or cis-1,2-dibromoetheneAssign the hydrogens in C7H14O to this structureWhich compound has a longer C¬Cl bond?CH3CH2Cl CH CHCl 2at one time, it was used as arefrigerant, an anesthetic, and apropellant for aerosol sprays used as the starting materialfor the synthesis of a plastic thatis used to make bottles, flooring,and clear packaging for food
- How many rings and π bonds are contained in a compound of molecularformula C8H12 that is hydrogenated to a compound of molecular formulaC8H14?How many degrees of unsaturation (double bond equivalents) does C4H10ClNO have?What is the unsaturation number for compounds with the formula C6H10N3Br? O 2 O 3 O 4 O 1
- The unsaturation number or degree of unsaturation (U) can be used to determine the number of rings and multiple bonds in a compound from its molecular formula. Given a structure, you can determine the number of hydrogens without having to count them explicitly. Consider three compounds and their degree of unsaturation. (a) A compound A has the molecular formula C7H13ClN2OC7H13ClN2O. How many rings and/or π bonds does it contain?The degree of unsaturation, or index of hydrogen deficiency, is the number of pi bonds plus rings in a molecule. Specify the degree of unsaturation (index of hydrogen deficiency) of the following formulas: (a) C24H30 (b) C15H22 (c) C,H¡Cl,NPyrethrins, such as jasmolin II(below), are a group of naturalcompounds synthesized by flowers of the genus Chrysanthemum(known as pyrethrum flowers) to act as insecticides.(a) Circle and name the functional groups in jasmolin II.(b) What is the hybridization of the numbered carbons?(c) Which, if any, of the numbered carbons are chiral centers?
