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Conformers and Strain in Organic Chemistry

Total questions: 8

Worksheet time: 4mins

Name
Class
Date
1.

What process allows liquid wax to move up the wick of a burning candle?

a)

Combustion

b)

Evaporation

c)

Capillary action

d)

Distillation

2.

Which statement accurately describes alkanes?

a)

They are highly reactive and mix easily with water.

b)

They are non-polar, hydrophobic, and not very reactive.

c)

They contain double or triple bonds between carbon atoms.

d)

They are acidic compounds used to neutralize bases.

3.

Which fraction of crude oil is primarily used to make candle wax?

a)

Petroleum gas

b)

Octanes

c)

Paraffin waxes

d)

Asphalt

4.

What type of conformer has a dihedral angle of 0 degrees and is considered less stable due to higher energy?

a)

Staggered conformer

b)

Skew conformer

c)

Eclipsed conformer

d)

Gauched conformer

5.

What happens to a molecule's energy when it experiences increasing torsional strain?

a)

Its energy decreases.

b)

Its energy stays the same.

c)

Its energy increases.

d)

It becomes more stable.

6.

What term describes the crowding between groups in a molecule that makes it harder for them to move?

a)

Torsional energy

b)

Angular strain

c)

Steric hindrance

d)

Ring puckering

7.

Which conformer of butane has the lowest energy and least stress?

a)

Totally eclipsed conformer

b)

Gauche conformer

c)

Eclipsed conformer

d)

Anti conformer

8.

What is the combination of angular strain and torsional strain in cyclic molecules called?

a)

Steric hindrance

b)

Ring strain

c)

Butterfly conformation

d)

Newman projection