Stereochemistry Quiz 1
1 / 39
A compound whose molecules are superimposable on their mirror images even though they contain asymmetric carbon atoms is called
2 / 39
Which of the following is capable of existing as a pair of enantiomers?
3 / 39
How many number of stereoisomers possible for 2, 3-pentanediol?
4 / 39
Which of the following diols exists as a pair of enantiomers?
5 / 39
Which of the following molecules exists as a pair of enantiomers?
6 / 39
Which statement is not true for a meso compound?
7 / 39
Which of the following can exist as diastereomers?
8 / 39
What is the percent composition of a mixture of (S)-(+)-2-butanol, ?= +13.52?, and (R)-(-)-2-butanol, ? = -13.52?, with a specific rotation ? = +6.76??
9 / 39
What can be said with certainty if a compound has ?= -9.25??
10 / 39
What does a polarimeter measure?
11 / 39
Which of the following can make difference in optical isomers?
12 / 39
Which of the following statements is not true regarding pairs of enantiomers?
13 / 39
Which of the following is true of any (S)-enantiomerism?
14 / 39
Which of the following compounds would be suitable for preparing the necessary diastereomeric salts in preparation of Naproxen?
15 / 39
Which of the following is true of any (S)-enantiomer?
16 / 39
Compounds which have different arrangements of atoms in space while having same atoms bonded to each other are said to have
17 / 39
What is the specific optical rotation of (S)-malic acid at a concentration of 5.5 g/ mL in the solvent pyridine at 20?C at a wavelength of 589 nm?
18 / 39
Which is a meso compound?
19 / 39
Which among the following is true about enantiomerism?
20 / 39
Which of the following is the definition of a meso compound?
21 / 39
Which of the following compounds is a meso compound?
22 / 39
If a solution of a compound (30.0 g/100 mL of solution) has a measured rotation of +15? in a 2 dm tube, what is the specific rotation?
23 / 39
Which of the following is not true of enantiomers?
24 / 39
A solution of 0.1 g/mL of a pure R enantiomer in a 1.0 dm (i.e., 10 cm) polarimeter rotates plane polarized light by +4.8?. What is the rotation observed on this solution in a 2 dm polarimeter?
25 / 39
Which of the following statements regarding enantiomers not true?
26 / 39
Which of the following compounds can exhibit geometrical isomerism?
27 / 39
Which of the following statements regarding optical rotation is not true?
28 / 39
How many chiral stereoisomers can be drawn for CH3CHFCHFCH(CH3)2?
29 / 39
Which of these is a comparatively insignificant factor affecting the magnitude of specific optical rotation?
30 / 39
Which of the following is the definition for enatiomerism?
31 / 39
What is the effect of the I on the specific optical rotation (?), if I gets double?
32 / 39
Which of the following notations is not used to distinguish between pairs of enantiomers?
33 / 39
Polarimeter works on the principle of which of the following?
34 / 39
What is the total number of isomers, stereoisomers included, designated by the dichlorocyclopentane?
35 / 39
Which of the following groups has the highest priority according to the Cahn-Ingold-Prelog sequence rules?
36 / 39
In the absence of specific data, it can only be said that (R)?2?bromopentane is which of the following?
37 / 39
Which statement about a chiral compound A is incorrect?
38 / 39
Which of the following molecules does not possess enantiomers?
39 / 39
Which of the following is an alkane which can exhibit optical activity?
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