3. Stereochemistry
Rank the substituents of the asymmetric carbon according to the C.I.P notational system
1. Br 2. COOH 3. CH2OH 4. H
Rank the substituents of the asymmetric carbon according to the C.I.P notational system
1. Br 2. COOH 3. CHO 4. CH3
Rank the substituents of the asymmetric carbon according to the C.I.P notational system
1. Br 2. Cl 3. CH3 4. H
Rank the substituents of the asymmetric carbon according to the C.I.P notational system
1. OH 2. CH2CH3 3. CH3 4. OH
How many optical isomers are possible for lactic acid?
2
What is the possible (maximum) number of stereoisomers for a compound containing n dissimilar asymmetric carbon atoms?
2^n
Which of the following compounds may exist as cis-trans (Z/E) isomers?
But-2-ene
Which of the following shows geometrical (Z/E) isomerism?
CH3CH=CHCH3
What is the relative conformation of the compound shown below?
D
Which of the following compounds is never chiral?
D 1,4-dibromobutane
Stereoisomers that are not mirror images are called:
Diastereomers
What is the relative conformation of the compound shown below?
L
The C.I.P ranking of the substituents can be seen on the projected structure. Determine the absolute configuration
R
What is the absolute configuration of this molecule? (Ranking-manipulation-determination)
R
The C.I.P ranking of the substituents can be seen on the projected structure. Determine the absolute configuration
S
What is the absolute configuration of this molecule? (Ranking-manipulation-determination)
S
Which of the statements is correct about diastereomers?
They are stereoisomers that are not enantiomers
Which of the following is not true of enantiomers?
They have the same specific rotation
Determine whether this compound is chiral or achiral
achrial
meso-Tartaric acid is
always optically inactive
Determine whether this compound is chiral or achiral
chiral
The two compounds shown below are
conformational isomers
The two compounds shown below are
constitutional isomers
The two compounds shown below are
diastereomers
The two compounds shown below are
enantiomers
The two compounds shown below are
identical
Consider (R)- and (S)-butan-2-ol. Which physical property distinguishes the two compounds?
rotation of plane-polarized light
The isomers of a substance must have
same molecular weight
An optically active compound
when in solution rotate the plane of polarized light
