Non-carbonyl Groups Flashcards
In a carbon-halogen (C–X) bond, the carbon atom bears a partial ________ charge while the halogen atom bears a partial ________ charge.
C: Partial +
X: Partial -
Are C-X bonds polar or nonpolar?
Polar
Do aliphatic halides exhibit intermolecular hydrogen bonding?
No
Do aliphatic halides have lower or higher boiling and melting points than similar alkanes?
Higher
Alkyl _________ have the lowest boiling points, alkyl _______ the highest.
Highest: Alkyl Iodides
Lowest: Alkyl Fluorides
Are all alkyl halides soluble or insoluble in water?
Insoluble
A mixture of alkyl halide and water results in the formation of ___ layers.
Two layers
Are chlorinated and fluorinated halides denser than water?
No
Are brominated and iodinated halides denser than water?
Yes
In alkyl halides, density _________ with polyhalogenation.
Increases
These compounds are sulfur analogs of alcohols and phenols.
Thiols or Mercaptans
These compounds are sulfur analogs of ethers.
Dialkyl Sulfides or Thioethers
The amino acid cysteine contains a _________ link. The crosslinked _________ bonds of cysteine are found in keratin (hair).
Disulfide
The more S-S bonds, the ________ and less flexible the bonds are.
Stronger
Nitriles, also known as _____ compounds, are organic compounds that contain the cyano functional group represented as −C ≡ N.
Cyano