is characterized by all of the above

is an achiral molecule which contains chiral carbons

Contains a plane of symmetry or a center of symmetry

HARD

Earn 100

$a)$ How many diastereomers does $2 -$ isopropyl $- 5 -$ methylcyclohexanol have?

$b)$ Draw the lowest energy conformation of each.

$c)$ The decreasing order of their stabilities is menthol $>$ neomenthol $>$ isomenthol $>$ neoisomenthol. Match each compound to its structure.

$b)$ Why does $S_{N} 2$ cleavage occurs at a faster rate with HI than with $H C l$ ?

Important Questions on Organic Chemistry- Some Basic Principles and Techniques

EASY

Chemistry>Organic Chemistry>Organic Chemistry- Some Basic Principles and Techniques>Stereoisomerism

The number of stereoisomer possible for the following compound is

{CH}_{3} - CH = CH - CH (Br) - {CH}_{2} - {CH}_{3}

HARD

Chemistry>Organic Chemistry>Organic Chemistry- Some Basic Principles and Techniques>Stereoisomerism

Which of the following molecules does not show stereo isomerism ?

EASY

Chemistry>Organic Chemistry>Organic Chemistry- Some Basic Principles and Techniques>Stereoisomerism

Which among the following conformations is the most stable for cyclohexane?

MEDIUM

Chemistry>Organic Chemistry>Organic Chemistry- Some Basic Principles and Techniques>Stereoisomerism

The number of stereoisomers possible for

1, 2

-dimethyl cyclopropane is:

MEDIUM

Chemistry>Organic Chemistry>Organic Chemistry- Some Basic Principles and Techniques>Stereoisomerism

The number of stereoisomers possible for the following compound is

C H_{3} - C H = C H - C H (O H) - C H_{3}

EASY

Chemistry>Organic Chemistry>Organic Chemistry- Some Basic Principles and Techniques>Stereoisomerism

The number of stereoisomers that can exist for

3

-chlorobutan-

2

-ol is

EASY

Chemistry>Organic Chemistry>Organic Chemistry- Some Basic Principles and Techniques>Stereoisomerism

There are four conformational isomers of $n$ -butane:

Eclipsed, Fully eclipsed, Gauche, Staggered

Arrange these isomers of $n$ -butane in increasing order of energy.

HARD

Chemistry>Organic Chemistry>Organic Chemistry- Some Basic Principles and Techniques>Stereoisomerism

Total number of possible stereoisomers of dimethyl cyclopentane is

EASY

Chemistry>Organic Chemistry>Organic Chemistry- Some Basic Principles and Techniques>Stereoisomerism

The correct statement about the following compounds

Question Image is

MEDIUM

Chemistry>Organic Chemistry>Organic Chemistry- Some Basic Principles and Techniques>Stereoisomerism

$X$ and $Y$

Question Image
are

EASY

Chemistry>Organic Chemistry>Organic Chemistry- Some Basic Principles and Techniques>Stereoisomerism

The number of optical isomers possible for

2 -

Bromo-

3 -

Chlorobutane are

HARD

Chemistry>Organic Chemistry>Organic Chemistry- Some Basic Principles and Techniques>Stereoisomerism

Total number of isomers, considering both structural and stereoisomers, of cyclic ethers with the molecular formula

C_{4} H_{8} O

is ________

EASY

Chemistry>Organic Chemistry>Organic Chemistry- Some Basic Principles and Techniques>Stereoisomerism

A meso compound

MEDIUM

Chemistry>Organic Chemistry>Organic Chemistry- Some Basic Principles and Techniques>Stereoisomerism

The correct corresponding order of names of four aldoses with configuration given below respectively, is

Question Image

MEDIUM

Chemistry>Organic Chemistry>Organic Chemistry- Some Basic Principles and Techniques>Stereoisomerism

In the following structures, which one is having staggered conformation with maximum dihedral angle?

MEDIUM

Chemistry>Organic Chemistry>Organic Chemistry- Some Basic Principles and Techniques>Stereoisomerism

The number of stereoisomers possible for a compound of the molecular formula,

{CH}_{3} - CH = CH - CH (OH) - Me

, is

EASY

Chemistry>Organic Chemistry>Organic Chemistry- Some Basic Principles and Techniques>Stereoisomerism

Which of the following conformations will be the most stable?

EASY

Chemistry>Organic Chemistry>Organic Chemistry- Some Basic Principles and Techniques>Stereoisomerism

The decrease in stability of cyclohexanol is due to

MEDIUM

Chemistry>Organic Chemistry>Organic Chemistry- Some Basic Principles and Techniques>Stereoisomerism

Which of the following is the correct order of stability of conformations for

{NH}_{2} - {CH}_{2} - {CH}_{2} - OH

EASY

Chemistry>Organic Chemistry>Organic Chemistry- Some Basic Principles and Techniques>Stereoisomerism

With respect to the conformers of ethane, which of the following statements is true?

Important Questions on Organic Chemistry- Some Basic Principles and Techniques

Learn and Prepare for any exam you want !