Use Coupon: CART20 and get 20% off on all online Study Material

Total Price: R

There are no items in this cart.
Continue Shopping
Get instant 20% OFF on Online Material.
coupon code: MOB20 | View Course list

Get extra R 500 off


give me thwe proper defination of enantiomer and racemic mixture?

6 years ago


Answers : (2)


Enantiomers - Nonsuperposable mirror images, or chiral molecules which are mirror images.

criterion for enantiomerism : compound should be as a whole  asymmetric, i.e; it should not have any plane of symmetry or centre of symmetry.


Racemic mixture, racemic modification, or racemate - A mixture consisting of equal amounts
of enantiomers. A racemic mixture exhibits no optical activity because the activities of the
individual enantiomers are equal and opposite in value, therby canceling each other out.

6 years ago

Dear vikash,

A solution in which both enantiomers of a compound are present in equal amounts is called a racemic mixture, or racemate. Racemic mixtures can be symbolized by a (d/l)- or ()- prefix in front of the substance's name. Since enantiomers have equal and opposite specific rotations, a racemic mixture exhibits no optical activity. Therefore it is impossible to tell a racemic mixture apart from an achiral substance using polarimetry alone. Note that the terms chiral and optically active should not be confused. It would be incorrect to say that a racemic mixture is achiral. Chirality is a property of individual molecules. Optical activity is a property of solutions. A racemic mixture consists of chiral molecules, but it has no net optical activity.


Molecules that are optical isomers, or mirror images, of one another. Enantiomers can be distinguished by the direction in which they rotate the plane of polarization of polarized light and are referred to, therefore, as being dextrorotatory (d-) or  laevorotatary (l-).


We are all IITians and here to help you in your IIT JEE preparation.

All the best.

 If you like this answer please approve it....

win exciting gifts by answering the questions on Discussion Forum


Sagar Singh

B.Tech IIT Delhi

6 years ago

Post Your Answer

Other Related Questions on Organic Chemistry

How do we find the bond order in a compound.......?
1- Draw the Lewis structure. 2-count the total no of bond . 3-count the no of bond group between individual atom . 4-divide the no of bond between atoms by a total no of bond group in the...
Umakant biswal one month ago
you have already familiar with text books of intermediate. take reference from that text book .use this oppurtunity for only asking critical questions. It makes you perfect in writing JEE...
cris gayle one month ago
Why does 3 degree alcohol give immediate turbidity with lucas reagent
Lucas reagent is a mixture of HCl and anhydrous ZnCl2 this reaction undergoes SN1 reaction and this reaction passes through the carbocation intermediate and tertiary carbication are stable...
Amay chugh one month ago
@ srilakshmi lucas reagent is hcl + anhydrous zncl2 . the reaction proceeds in sn1 mechanism , which depends upon carbocation stability . tertiary alcohol react almost immidietly as they...
Umakant biswal one month ago
How does chemical reactivity vary in group and period
@ himesh as we go left to the right of the periodic table , nuclear charge increase and the electrons are added to the same shell . therefore ionisation energy increase with increase in...
Umakant biswal one month ago
What makes an element or compound to become source of energy , for example hydrogen ?
Any element or compound which is able to emit anything that is non – uited particle or photon or electron or proton or neutron etc. which ffinally is considered as releases energy and hence ...
Vikas TU 16 days ago
arrange the following in decreasing order of their bond length H 2 O, NH 3 ,H 2 S
both answers have confused me further as both are opposite to each other,can u recheck each others theory and let me know.thanks
rajiv 18 days ago
The length of the bond is determined by the number of bonded electrons (the bond order). The higher the bond order, the stronger the pull between the two atoms and the shorter the bond...
Sagar Gupta 18 days ago
@ rajiv the decreasing order will be H20 > h2s > nh3 as the bond angle of h2s is smaller than that of h20 . and in case of h20 its 104 degree nearly and for ammonia is 101 degree nearly ....
Umakant biswal 18 days ago
Where is POAC given in OP tandons book . What I difference between POAC and unitary method?​
@ sumit POAC is mentioned in the mole concept chapter of o.p tandon book , make sure u have purchased the latest edition book , not the old one. POAC is the principle of atomic conversion , ...
2017 years ago
View all Questions »

  • Complete JEE Main/Advanced Course and Test Series
  • OFFERED PRICE: R 15,000
  • View Details
Get extra R 3,750 off

Get extra R 500 off

More Questions On Organic Chemistry

Ask Experts

Have any Question? Ask Experts

Post Question

Answer ‘n’ Earn
Attractive Gift
To Win!!!
Click Here for details