Quiz on Bond Polarity and Reaction Intermediates

What is bond polarity a measure of?

• The strength of a bond

• The extent to which a bond exhibits polarity

• The length of a bond

• The energy required to break a bond

Which of the following bonds is purely nonpolar?

• C-Cl

• C-H

• C-F

• C-O

What is the electronegativity order from highest to lowest?

• Br > C > F > N > O

• N > O > F > C > Br

• F > O > N > Br > C

• C > Br > N > O > F

What type of ion is a carbocation?

• Hydrogen ion

• Neutral carbon ion

• Positively charged carbon ion

• Negatively charged carbon ion

How is a carbocation formed?

• By covalent bond formation

• By homolytic bond cleavage

• By heterolytic bond cleavage

• By ionic bond formation

Which of the following is a method of preparing a carbocation?

• Photolysis

• Hydrolysis

• Electrolysis

• Heterolysis

What is the shape of a sp3 hybridized carbanion?

• Tetrahedral

• Pyramidal

• Linear

• Planar

Which carbanion is stabilized by resonance?

• Benzyl carbanion

• Methyl carbanion

• Isopropyl carbanion

• Ethyl carbanion

What effect does the inductive effect have on electron displacement?

• It increases with distance

• It decreases rapidly with distance

• It varies randomly

• It remains constant

What is the inductive effect caused by?

• Electron withdrawal only

• Absence of atoms

• Electron donation only

• Presence of an atom or group