posted by qpt on .
One chirality of CH3CHlCOOH is shown below.
Identify the image(s) below that exhibit the opposite chirality. Select all that apply.
I)Top Left Molecule
II)Bottom Right Molecule
III)Bottom Left Molecule
IV)Top Right Molecule
Please answer ....
(a) Which conformational isomer of 1,2-difluoroethane does not have a dipole moment?
(b) 1,2-difluoroethene HFC=CFH has two stereoisomers. Which has the lower boiling point? Why?
1.cis-1,2-difluoroethene, because the Van der Waals interactions are greater.
2.cis-1,2-difluoroethene, because it does not have a dipole moment
3.trans-1,2-difluoroethene, because it does not have a dipole moment
4.trans-1,2-difluoroethene, because it has a dipole moment