Exam practice Flashcards
Which has atom with unfilled valence shell of e-
A H2
B HO
C BF3
D H3O+
C
Which not constitutional isomer of others (see 1b exam1)
A
Which not true about res?
A each atom much have full valence shell e-
B diff energy
C res struct must same arrangement of atoms
D same # e-
E valid Lewis structure
A bc charges
Which most important res? (Exam 1 1d)
B
Smallest dipole moment?
A C-N
B C-O
C C-F
D O-H
A
IHD of lidocaine (exam 1 1f)
C
Which tetrahedral
1methane CH4
2methyl carbocation CH3+
3methyl carbanion CH3-
4borane BH3
1/3
Which not true
A
Bond angle c-o-c
How many e- in valence shell of C in methyl
D 8 bc octet
What is angle between two bromo groups in highest energy chair trans 1,2 dibromocyclohexane?
180
90
60
0
180
Enantiomers are
Mirror image
At least one stereo center
Non superposable
Non super. Constitution. Isomer
Non super. Mirror
Non super mirror
Strongest base
Ho-, RC 3bond C-, Ch3Ch2-, Nh2-, ch2=ch-
HO-
Most ring strain
Cyclopropane 3
Struct relation 3R,3R,4S and 2S,3S,4R
Enantiomers
Which not true
All BL acid have H
All Lewis base also BL base
All Lew acid have H
All Lew acid e- deficient
BL says water both a/b
All Lewis has H
Which not true meso compound?
One or more planes symmetry
Identical to mirror
More than one
stereocenter
R/S same on center
R/s same
What reactive intermed formed with Allene with Br2 and H2O to give 1,2 broom alcohol
Carbanion
When cyclohexene with OsO4 makes
Ea
Aa
Ee
Coplanar
Ea
Which has highest HOMO
Methanol
Acetic acid
Sodium ethoxide
Water
C most nuc
