Which of the following statements is true?
1.An axial group encounters more steric strain than an equatorial group.
2.All substituted cycloalkanes possess axial and equatorial bonds.
3.Only cyclopentane rings possess axial and equatorial bonds.
4.Cyclohexane derivatives are more stable with axial substituents than with equatorial substituents.
5.A cyclic compound cannot contain a double bond.
Question 2
Which of the following may not contribute to the overall energy of a cycloalkane?
1.torsional strain
2.angle strain
3.hydrogen bonding
4.steric strain
5.All of these contribute to the overall energy of a cycloalkane.
The planar peptide group
The heme group
Group therapy.
Adapoids and omomyoids had longer snouts and are the first “true” primates.
Which of the following statements is true of linkage?
GDP per Capita by Country Group, 1820–2008