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7.0 HALOALKANES

Total questions: 10

Worksheet time: 6mins

Name
Class
Date
1.

Which structure represents 3-chloro-2,2-dimethylbutane?

a)
b)
c)
d)
2.

What is the IUPAC name for the following compound?

a)

chlorofluorocarbon.

b)

trichlorofluoroethane.

c)

1-fluoro-1,2,2,2-tetrachloroethane

d)

1,1,1,2-tetrachloro-2-fluoroethane

3.

Haloalkanes are more reactive than corresponding alkanes because

a)

haloalkanes are ionic compounds.

b)

haloalkanes are polar compounds.

c)

haloalkanes are more soluble in water.

d)

the size of the halogen atoms are bigger.

4.

SN1 stands for

a)

Unimolecular nucleophilic substitution

b)

Bimolecular nucleophilic substitution

5.

SN2 mechanism favors

a)

methyl halide

b)

3° haloalkane

6.

reactivity of haloalkanes towards SN2 mechanism

a)

3° > 2° > 1°

b)

3° < 2° < 1°

7.

The type of reaction shown is called

a)

Addition reaction

b)

Nucleophilic addition reaction

c)

Electrophilic reaction

d)

Nucleophilic substitution reaction

8.

Nitriles can be formed by reacting haloalkanes with......

a)

Amines

b)

Amides

c)

Sodium Cyanide or Potassium Cyanide

d)

Potassium Nitrile

9.

Iodoethane reacts with hydroxide ion, OH-, through SN2 mechanism.What is the effect of doubling the concentration of OH-?

a)

The rate of reaction is doubled

b)

The rate of reaction is quadrupled

c)

The rate of reaction remains the same.

d)

The rate of reaction decrease by factor of 2.

10.

Which of the following alkyl halide is most readily undergoes hydrolysis by SN1 mechanism?

a)

CH3CH2CH2Cl

b)

CH3Cl

c)

(CH3)2 CHCl

d)

(CH3)3 CCl