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SN1 SN2 Reactions

Total questions: 10

Worksheet time: 5mins

Name
Class
Date
1.

What is the full form of SN1 reaction?

a)

Substitution Nucleophilic Unibimolecular

b)

Substitution Nucleophilic Trimolecular

c)

Substitution Nucleophilic Bimolecular

d)

Substitution Nucleophilic Unimolecular

2.

What is the full form of SN2 reaction?

a)

Substitution Nucleophilic Bimolecular

b)

Substitution Neutral Bimolecular

c)

Synthesis Nucleophilic Bimolecular

d)

Substitution Nucleophilic Tetramolecular

3.

In which type of solvent does SN1 reaction usually occur?

a)

Hydrophilic solvents

b)

Aprotic solvents

c)

Polar protic solvents

d)

Non-polar solvents

4.

In which type of solvent does SN2 reaction usually occur?

a)

Aqueous solvents

b)

Non-polar solvents

c)

Polar aprotic solvents

d)

Polar protic solvents

5.

What is the rate-determining step in SN1 reaction?

a)

Formation of the carbocation intermediate

b)

Nucleophilic attack

c)

Formation of the anion intermediate

d)

Leaving group departure

6.

What is the rate-determining step in SN2 reaction?

a)

Formation of a carbocation

b)

Rearrangement of the leaving group

c)

Protonation of the nucleophile

d)

Nucleophilic attack and leaving group departure

7.

Which type of substrate is preferred in SN1 reactions?

a)

Primary substrates

b)

Secondary substrates

c)

Quaternary substrates

d)

Tertiary substrates

8.

Which type of substrate is preferred in SN2 reactions?

a)

Tertiary alkyl halides

b)

Secondary alkyl halides

c)

Aromatic compounds

d)

Primary alkyl halides

9.

What is the stereochemistry of the product in SN1 reactions?

a)

optically inactive

b)

meso compound

c)

enantiomerically pure

d)

racemic mixture

10.

What is the stereochemistry of the product in SN2 reactions?

a)

Inversion of configuration

b)

Retention of configuration

c)

No change in configuration

d)

Racemization