Quiz | Further Reactions of Haloalkanes

1

Which statement is correct about an SN1 reaction?

The reaction is stereospecific

The bond-breaking step is the fastest step of the reaction

SN1 reactions proceed through an intermediate carbocation

The kinetic rate involves the nucleophile

2

Which of the following statements regarding the E2 mechanism is incorrect?

E2 mechanism is always bimolecular

E2 mechanism is second order

E2 mechanism occurs in one step

E2 mechanism occurs with a syn periplanar geometry

3

Which statement is incorrect about an E1 reaction between (CH3)3CBr and NaOH?

It competes with an SN1 reaction

An alkene is formed

The reaction occurs with an anti periplanar geometry

The kinetic rate only involves (CH3)3CBr

4

Which of the following starting material reacts by the E1 mechanism most readily?

CH3CH2I

CH3CH2Br

(CH3)2CHBr

(CH3)3CBr

5

What is the major product of an elimination reaction between 3-chloro-2,3-dimethylpentane and NaOH?

2,3-dimethylpent-2-ene

3,4-dimethylpent-2-ene

2-methyl-3-methylenepentane

No selectivity observed

6

Which conditions favor an E1 reaction?

strong sterically hindered base / primary alkyl halide

strong sterically hindered base / tertiary alkyl halide

good nucleophile / primary alkyl halide

good nucleophile / tertiary alkyl halide

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