enantiomers and diastomers

Question 1

what are enantiomers

Answer 1

they are chiral molecules that are non identical mirror images of each other. they have no plane of symmetry
nonsuperimposable

Question 2

Achiral molecules are

Answer 2

superimposable

Question 3

if a molecule has a plane of symmetry

Answer 3

it cannot exist as enantiomers

Question 4

constitutional isomers

Answer 4

have the same atoms with different connectivity

Question 5

stereoisomers

Answer 5

same connectivity, rearranged differently in space

Question 6

conformation change

Answer 6

changes caused by bond rotation

Question 7

configuration changes

Answer 7

changes that are caused by breaking bonds

Question 8

conformation changes mean

Answer 8

molecules are intercovertible

Question 9

stereogenic

Answer 9

carbon with 4 different group

Question 10

racemic solution

Answer 10

contains stereoisomers in equal ratios

Question 11

many chiral products

Answer 11

exist as one enantiomer

Question 12

enantiomerically pure

Answer 12

the same enantiomer in a solution

Question 13

do enantiomers have the same chemical properties?

Answer 13

yes

Question 14

do enantiomers have the same physical properties?

Answer 14

yes*
they rotate plane polarised light in opposite and equal

Question 15

plane polarised

Answer 15

a beam of light where the direction of vibration align parrerel

Question 16

what are enantiomers known as

Answer 16

+ or - r or s

Question 17

diastereomers are

Answer 17

non mirror image non identical non superimposable

Question 18

cis

Answer 18

priority groups on the same side

Question 19

trans

Answer 19

priority group on opposite sides

Question 20

diastereomers can be

Answer 20

achiral

Question 21

diastereomers have

Answer 21

different physical and chemical properties

Question 22

calculate the number of stereoisomers

Answer 22

2 ^ n

Question 23

calculate the number of diastereomers

Answer 23

2 ^n-1

Question 24

meso compound

Answer 24

meso isomers are
. A meso compound is “superimposable” on its mirror image
non optically active compound

Question 25

why are meso compound inactive optically?

Answer 25

Meso form is optically inactive because the molecules in meso form have a plane of symmetry due to which the optical rotations of upper and lower parts are equal and in the opposite direction which balanced internally and compound becomes optically inactive. This property is called internal compensation.

Question 26

chiral molecules with no stereogenic centre

Answer 26

allene
it is atropisomers
the double bond will not rotate
=c=

Question 27

chiral defination

Answer 27

asymmetric in such a way that the structure and its mirror image are not superimposable

Question 28

stereogenic

Answer 28

consisting of a central atom and four distinguishable ligands such that the interchange of any two leads to a stereoisomer;

Question 29

how to seperate enantiomers

Answer 29

create diastereoisomers
they have different physical properties which makes it easier to seperate

Question 30

seperating enantiomers is called ?

Answer 30

resolution

Question 30

seperating enantiomers is called ?

Answer 30

resolution