Meso Compounds
Trending Questions
Q.
What is a stereo center and a chiral center?
Q. Amongst the given options the compounds(s) in which all the atoms are in one plane in all the possible conformations (if any), is (are)
- H2C=C=O
- H−2C=C=CH2
Q. Which of the following will show geometrical?
1.![](https://search-static.byjusweb.com/question-images/byjus/ckeditor_assets/pictures/1058934/original_Z129.jpg)
2.
![](https://search-static.byjusweb.com/question-images/byjus/ckeditor_assets/pictures/1058938/original_Z130.jpg)
3.
ClBrC=C=C=C(CH3)(C2H5)
4.
CH3HC=C=CBrH
1.
![](https://search-static.byjusweb.com/question-images/byjus/ckeditor_assets/pictures/1058934/original_Z129.jpg)
2.
![](https://search-static.byjusweb.com/question-images/byjus/ckeditor_assets/pictures/1058938/original_Z130.jpg)
3.
ClBrC=C=C=C(CH3)(C2H5)
4.
CH3HC=C=CBrH
- 1, 2, 3
- 2, 3 only
- 3, 4 only
- 2, 3, 4
Q. atmost how many isomer can bromohexane have ?
Q.
How would you convert ethanol into ethane.
Q. 29.The value of ebullioscopic constant depends upon?? And how??
Q.
A compound whose molecule is superimposable on its mirror image despite containing chiral carbon atoms is called:
Threo isomer
Meso compound
No special name
Enantiomer
Q. ![](https://search-static.byjusweb.com/question-images/byjus/infinitestudent-images/ckeditor_assets/pictures/583580/original_148.jpg)
The number of chiral centres present in the above compound is
![](https://search-static.byjusweb.com/question-images/byjus/infinitestudent-images/ckeditor_assets/pictures/583580/original_148.jpg)
The number of chiral centres present in the above compound is
- \N
- 1
- 2
Q. If the specific rotation of optically pure 2-Butanol is -120 degrees, and a synthetic sample of 2-butanol containing both the enantiomers shows a specific rotation of +24 degrees, find the percentage of d-2-Butanol.
- 80
- 40
- 20
- 60
Q. Which of the following structure(s) is/are meso-2, 3 butanediol?
Q.
Does 1, 2 dimethylcyclopropane exhibit optical isomerism?if no...why?if yes...why?
Q. An optically active alcohol A(C6H10O) absorbs two moles of hydrogen per mole of A upon catalytic hydrogenation and gives a product B.The compound B is resistant to oxidation by CrO3 and does not show any optical activity.Deduce the structures of A and B.
Q. Which of the following is the most stable conformer of the given molecule?
![](https://df0b18phdhzpx.cloudfront.net/ckeditor_assets/pictures/1305534/original_2q.png)
![](https://df0b18phdhzpx.cloudfront.net/ckeditor_assets/pictures/1305534/original_2q.png)
Q. 22.Bromobenzene from iodobenzene
Q. The following compound is a meso compound – True or False?
![](https://search-static.byjusweb.com/question-images/byjus/infinitestudent-images/ckeditor_assets/pictures/13766/content_a.png)
![](https://search-static.byjusweb.com/question-images/byjus/infinitestudent-images/ckeditor_assets/pictures/13766/content_a.png)
- True
- False
Q. 11. What is the monomer of CH2C(CH3)2CH2C(+)(CH3)2 ?
Q. What is the effect of elctron releasing group and electron withdrawing group in coupling rxn of benzene diazoniumhalide?
Q. Which of the following will have a meso isomer?
- Cis-1, 2 dichlorocyclobutane
- 2, 3 - dichlorobutane
- 2, 2-dichlorobutane
- 2, 3-dimethylbutane
Q. Why is (-)-butan-2-ol is optically inactive?
Q. Total number of structural isomers with the formula C3H4 is:
- 2
- 5
- 3
- 4
Q. Optical rotation of sucrose in 1 N HCl at various times was found as shown below:
Time(sec)07.1818.027.05∞Rotation(deg)+24.09+21.7+17.7+15.0−10.74
Show that the inversion of sucrose is a first order reaction.
Time(sec)07.1818.027.05∞Rotation(deg)+24.09+21.7+17.7+15.0−10.74
Show that the inversion of sucrose is a first order reaction.
Q. Meso compound do not show optical activity because :
- they do not contain plane of symmetry
- they have non-super imposable mirror images
- they do not contain chiral carbon atoms
- they contain plane of symmetry
Q. Match the following according to their optical activity.
- always active
- sometimes active
- always inactive
Q. Meso compounds can be planar.
- True
- False
Q. Which of the following compounds are meso?
Q. Why is N-methyl, N-ethyl propylamine optically inactive?Is it because something called pyramidal inversion?If yes , what is pyramidal inversion?
Q. Which of the following structure(s) is/are meso-2, 3 butanediol?
Q. Match the following according to their optical activity.
- always active
- sometimes active
- always inactive
Q. Meso tartaric acid is optically inactive due to the presence of:
- molecular asymmetry
- molecular symmetry
- external compensation
- two asymmetric C-atoms
Q. Statement 1 : Butan-2-ol is optically active.
Statement 2 : The ability of rotation of plane polarized light either towards right or left is called optical activity.
- Statement 1 is correct
- Both 1 and 2 are correct
- Statement 2 is correct
- Both 1 and 2 are incorrect