Take this Quiz: A-Level Chemistry: Organic Chemistry I | Zestly

Question 1

Which of the following statements correctly describe the nature of E-Z isomerism in alkenes?

Accepted Answer

It arises due to restricted rotation about the carbon-carbon double bond.

Question 2

Which factors influence the rate of nucleophilic substitution of halogenoalkanes?

Accepted Answer

The bond enthalpy of the carbon-halogen bond.

Question 3

When 2-bromobutane reacts with hydroxide ions, which conditions favor the elimination reaction over substitution?

Accepted Answer

Ethanolic solvent at high temperature.

Question 4

Which of the following statements about Markovnikov's rule in electrophilic addition to alkenes are correct?

Answer

It predicts the major product based on carbocation stability.

Answer

It states that the hydrogen atom attaches to the carbon with the fewest hydrogens.

Answer

It is based on the fact that tertiary carbocations are more stable than secondary ones.

Answer

It only applies to symmetrical alkenes.

Question 5

What is the defining characteristic of a chiral centre in an organic molecule?

Answer

A carbon atom bonded to four identical groups.

Answer

A carbon atom involved in a double bond.

Answer

A carbon atom bonded to three different groups.

Answer

A carbon atom bonded to four different groups.