Which of the following is an optically active substance ?
CHIBrCl
CH3CH2OH
CH3CH2COCH3
CHCl3
What will be the result of ring flipping ?
Axial become equitorial bond
Equitorial become axial bond
Eclipsing bond
Both a and b
Which of the following is not a type of c-H bond (chair conformation) ?
Axial
Equatorial
Eclipsing
What is the name of rotation caused due to the emergence of vibrating plane polarized light ?
Cyclic rotation
Lustric rotation
Optical rotation
Light rotation
What are the different forms that arises out of the rotation about c-c single bond ?
S-trans form
S-cis form
Conformers
Transoid form
Which of the following can convert a trans to cis isomer ?
Freezing to certain temperature
Heating to a certain temperature
Ionization
Dissolving in a particular solvent
What is the alternate name of ortho isomer ?
1,2-dichloro benzene
1,3-dichloro benzene
1,4-dichloro benzene
Dichloro benzene
Which of the following is a factor that makes cis olefin unstable ?
Stability
Steric hindrance
Isomeric hindrance
Hindrance
What is the name of an optical isomer which differ only in the sign of optical rotation ?
Entomer
Enantiomer
Cis isomer
Trans isomer
What is condition for a molecule to be optically active ?
Molecular dyssymetry
Molecular symmetry
Chirality
Isomerism
