The bottom three pictures are a good way to represent a SN1 reaction progress.

Which of these has only one transition state?

Which of these has an intermediate state?

Which of these is a one step reaction?

Which of these is a two step reaction?

In which reaction is an inverted product formed i.e. it is stereospecific?

The other name for a reactant molecule in organic reactions is

The rate of SN2 reaction is controlled by

The rate of the SN1 reaction is controlled by

Which of these is bimolecular?

Which of these has two transition states?

Which of the following is capable of influencing the rate of either of the SN1 or SN2 reactions?

Tertiary carbons have more steric hinderance than secondary carbons

Primary carbocations have more positive inductive effect than secondary?

Based on C-halogen bond strength in the table, the reaction with Iodine as the leaving group will be the slowest.

Arrange the following Nucleophiles in the order of increasing reactivity. Water, Ammonia, Hydroxide ion and Cyanide ion

Polar protic solvents stabilize the carbocation by hydrogen bonding and thus favor the SN1 mechanism.

Aprotic solvents favor SN2 because they stabilize the transition state.

Aprotic solvents cannot bond with the incoming nucleophile and this favors the SN2 mechanism.