Multiple Choice
Best statement about Lewis Dot structures of
organic molecules - CORRECT ANSWER-- total
number of electrons in your structure must equal
the number or valence electrons of all atoms
- formal charge for a given atom equals the
number of valence electrons for the atom minus
the number of electrons in bonds to that atom
divided by two minute the number of electrons in
lone pairs on that atom
Lewis Dot Structure correct number - CORRECT
ANSWER-[Xe]: 8
[F]: 7
[N]: 5
[C]: 4
[As] - CORRECT ANSWER-[As] = group 5
number of valence electrons
Amine Terms - CORRECT ANSWER-Primary: 1
attachment not H
Secondary: 2 attachment not H
Tertiary: 3 attachment not H
, Quaternary: 4 attachment not H
Alkane correct statements - CORRECT
ANSWER-- soluble in non polar solvents and
insoluble in water
- non branched chain alkanes have more surface
area intermolecular VDW interactions so that non
branched chain alkanes have a higher boiled
point than branched chain alkanes
- hydrocarbons which consist of nothing but
hydrogen and carbon
Incorrect Statement - CORRECT ANSWER-boat
form of cyclohexane is more stable than the chair
form of cyclohexane
Incorrect Statement - CORRECT ANSWER-
Constitutional isomers (structural isomer) are a
kind of isomer in which the connectivity is the
same it the arrangement of atoms in space is
different
Assigning Cahn Ingold Prelog nomenclature -
CORRECT ANSWER-Highest priority is for the
higher atomic number of the atom directly
attached to the chiral carbon