But-2-ene exhibits cis-trans-isomerism due to
1. rotation around C2-C3 double bond
2. rotation around C3-C4 sigma bond
3. rotation around C1-C2 bond
4. restricted rotation around C=C bond
How many stereoisomers does this molecule have?
CH3CH=CHCH2CHBrCH3
1. 4
2. 6
3. 8
4. 2
If optical rotation produced by the compound (i) is +52° then that produced by that the compound (ii) is:
1. -52°
2. +52°
3. 0°
4. unpredictable
Rotation of plane polarized light can be measured by:
1. manometer
2. calorimeter
3. polarimeter
4. viscometer
Which one of the following can exhibit cis-trans-isomerism?
1. CH3-CHCl-COOH
2. H-C≡C-Cl
3. Cl-CH=CHCl
4. ClCH2-CH2Cl
Fisher projection indicates:
1. horizontal substituents above the plane
2. vertical substituents above the plane
3. both horizontal and vertical substituents below the plane
4. both horizontal and vertical substituents above the plane
Which of the following compounds is not chiral ?
1. DCH2CH2CH2Cl
2. CH3CH2CHDCl
3. CH3CHDCH2Cl
4. CH3CHClCH2D
Which of the following is an optically active compound?
1. 1-butanol
2. 1-propanol
3. 2-chlorobutane
4. 4-hydroxybutanal