Stereochemistry Quiz

What is stereochemistry?

• The arrangement of atoms in space

• The study of chemical reactions

• The study of atomic structure

• The study of molecular bonding

Which of these conformations, is the most stable conformation?

• Boat conformation

• Staggered conformation

• Eclipsed conformation

• Twist boat conformation

What is the main cause of torsional strain in conformers?

• Steric hindrance

• Compression of bond angles

• Repulsion between electron clouds

• Overlap of symmetrical sp3 orbitals

Which conformer is most stable in cyclohexane?

• Half-chair conformer

• Twist boat conformer

• Boat conformer

• Chair conformer

How to determine the most stable conformer in cyclohexane?

• Based on the boat conformer that it forms.

• Based on the position of substitutes at the up or down positions.

• Based on the position of the largest substitute in the equatorial position.

• Based on the position of the largest substitute in the axial position.

Using Newman projection, draw the most stable conformer for 3,3-dimethylpentane viewed along the C2-C3 bond.