The term removed refers to the number of generations separating the cousins themselves. So your first cousin once removed is the child (or parent) of your first cousin. Your second cousin once removed is the child (or parent) of your second cousin. And your first cousin twice removed is the grandchild (or grandparent) of your first cousin. Clearly, it doesn't take many generations before your family tree is a bit unwieldy.
A molecule can have more than one acyl halide functional group. For example, adipoyl dichloride, usually simply called adipoyl chloride, has two acyl chloride functional groups; see the structure at right.It is the dichloride (i.e., double chloride) of the 6-carbon dicarboxylic acid adipic acid.n acyl halide (also known as an acid halide) is a chemical compound derived from an oxoacid by replacing a hydroxyl group with a halide group. If the acid is a carboxylic acid, the compound contains a âCOX functional group, which consists of a carbonyl group singly bonded to a halogen atom.
Electrophiles and Nucleophiles. The oxygen of hydroxide ion bears a formal charge of -1. The hydrogen of hydrogen chloride bears a d + charge because chlorine is more electronegative than hydrogen and thus the H-Cl bonding electron pair is unequally shared.n this reaction, chloride ion is the leaving group. Example 2: Decide if each molecule or ion shown below will react as a nucleophile or electrophile, or both. Solution 2: Examine each structure for the charge distribution and electronic features discussed above.