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
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