Optical Isomerism and Chirality Quiz

What is the result of chirality in molecules with a single chiral centre?

• Geometric isomerism

• Optical isomerism

• Structural isomerism

• Positional isomerism

How can data on optical activity be used in organic chemistry?

• To determine the boiling point of a compound

• As evidence for SN1 and SN2 mechanisms

• To identify the color of a compound

• To measure the solubility of a compound

What distinguishes structural isomers from other types of isomers?

• They have the same connectivity of atoms but different spatial arrangements

• They have different connectivity of atoms

• They have the same physical properties

• They are always geometric isomers

Which type of isomerism involves molecules that have the same connectivity but differ in the spatial arrangement of atoms?

• Structural isomerism

• Stereoisomerism

• Geometric isomerism

• Chain isomerism

Which of the following best defines isomers?

• Molecules with the same molecular formula but different structural formulae.

• Molecules with different molecular formulae but the same structure.

• Molecules with the same structure and same molecular formula.

• Molecules with different atoms and different structures.

Why can geometric isomers exist in molecules with C=C bonds?

• Because the double bond can rotate freely.

• Because the double bond cannot be rotated.

• Because the single bond cannot be rotated.

• Because the atoms are joined in a different order.

Which of the following is NOT a criterion for a molecule to exhibit E/Z isomerism?

• The molecule must have a C=C double bond.

• Each carbon in the double bond must be attached to two different groups.

• The molecule must have a triple bond.

• The double bond must be present.

Which of the following is NOT a type of structural isomerism?

• Functional group isomerism

• Chain isomerism

• Geometric isomerism

• Position isomerism

If you were asked to spot optical isomers, which skill would you most likely be practicing?

• Identifying molecules with chiral centers

• Balancing chemical equations

• Calculating molar mass

• Drawing Lewis structures

Which of the following is the correct structural formula for a molecule containing a central carbon atom bonded to a hydroxyl group (OH), a chlorine atom (Cl), a bromine atom (Br), and a methyl group (CH₃)?

• CH₃ | HO—C—Cl | Br

• CH₃ | HO—C—OH | Br

• CH₃ | Cl—C—Cl | Br

• CH₃ | HO—C—Br | Cl