Top 150+ Solved Pharmaceutical Organic Chemistry 3 MCQ Questions Answer
Q. Which of the following statements is (are) true for the compound (3R, 4R)-3,4-dimethylhexane?
a. This compound is chiral.
b. The enantiomer of this compound is (3S, 4S)-3,4-dimethylhexane.
c. This compound is a diastereomer of (3R, 4S)-3,4-dimethylhexane.
d. all of the above
Q. Which of the following statements is (are) true for the compound cis-1,2-dichlorocyclopropane?
a. This compound is chiral.
b. The enantiomer of this compound is trans-1,2-dichlorocyclopropane.
c. This compound contains no asymmetric carbons.
d. none of the above
Q. Which of the following terms correctly describe(s) the structural relationship between cis-1,3- dimethylcyclopentane and trans-1,3-dimethylcyclopentane?
a. enantiomers
b. diastereomers
c. geometric isomers
d. both B and C
Q. What term describes the structural relationship between (E)- and (Z)-2-pentene?
a. Constitutional isomers
b. Enantiomers
c. Geometric isomers
d. Conformers
Q. Compounds which have different arrangements of atoms in space while having same atoms bonded to each other are said to have
a. position isomerism
b. functional group isomerism
c. chain isomerism
d. stereoisomerism
Q. Which of the following can make difference in optical isomers?
a. heat
b. temperature
c. polarized light
d. pressure
Q. Which of the following terms best describes the following pair of molecules?
a. Isomers
b. Constitutional isomers
c. Configurational isomers
d. Geometrical isomers
Q. What is the relationship between the two groups in the following molecules?
a. They are equatorial to one another
b. They are axial to one another
c. They are cis to one another
d. They are trans to one another
Q. What is the stereochemical relationship between the following two molecules?
a. Geometrical isomers
b. Enantiomers
c. Diastereomers
d. Identical
Q. Which of the following is an alkane which can exhibit optical activity?
a. Neopentane
b. Isopentane
c. 3–Methylpentane
d. 3–Methylhexane
Q. Hexane and 3-methylpentane are examples of:
a. enantiomers.
b. stereoisomers.
c. diastereomers.
d. constitutional isomers.