Author Question: Which of the above represents the Newman projection of 2-bromo-3-chlorobutane? 1.a 2.b 3.c 4.d ... (Read 67 times)

craiczarry · **on:** Aug 23, 2018

Which of the above represents the Newman projection of 2-bromo-3-chlorobutane?

1.a
2.b
3.c
4.d
5.e

Question 2

Which statement about bond rotations around C-C bonds in ethane and ethylene is correct?
1.Rotation around bond is easy because the orbital overlap does not change with rotation.
2.Rotation around bond is easy because there are p orbitals available in all directions of space.
3.Rotation around bond is very hard because the electron pairs from the adjacent bonds must pass by each other.
4.Rotation around bond is hard because the electrons are delocalized.
5.Rotation around bond is hindered because hydrogens on the adjacent carbons bump into each other.