Chemical Reaction Mechanisms and Concepts

The video tutorial explores a fundamental reaction in organic chemistry, focusing on the interaction between a hydroxide anion and bromomethane. It explains the concept of nucleophiles and electronegativity, detailing the reaction mechanism where the hydroxide anion acts as a nucleophile, leading to the formation of a bromide anion. The tutorial describes the substitution reaction, specifically an Sn2 reaction, where two reactants are involved in the rate-determining step.

What is the charge of the hydroxide anion?

• Positive 1

• Positive 2

• Negative 1

• Neutral

What term is used to describe a nucleus-loving species in a reaction?

• Catalyst

• Nucleophile

• Inhibitor

• Electrophile

Which element is more electronegative in bromomethane?

• Oxygen

• Carbon

• Hydrogen

• Bromine

What happens to the electron pair in the bond between carbon and bromine during the reaction?

• It is lost as energy.

• It is shared equally between carbon and bromine.

• It is transferred to bromine.

• It is transferred to carbon.

What is the charge of bromine after it becomes a bromide anion?

• Positive 1

• Negative 2

• Negative 1

• Neutral

What is the term for the group that leaves during a reaction?

• Catalyst

• Leaving group

• Nucleophile

• Substrate

What is the role of the carbon with three hydrogens in the reaction?

• Nucleophile

• Leaving group

• Substrate

• Catalyst

What type of reaction involves the substitution of a bromo group with a hydroxyl group?

• Substitution

• Elimination

• Addition

• Redox

How many reactants are involved in the rate-determining step of an Sn2 reaction?

• Four

• One

• Two

• Three

What does the '2' in Sn2 reaction signify?

• Two steps in the reaction

• Two products formed

• Two reactants in the rate-determining step

• Two catalysts used