Free Printable BENZENE

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Worksheets

BENZENE

Total questions: 15

Worksheet time: 15mins

Name

Class

Date

1.

Which of the following is obtained when the compound below is heated with acidified KMnO₄?

a)

b)

c)

d)

2.

Which of the following reagents will you use for oxidative cleavage of an alkene?

a)

KMnO4/H3O+

b)

HX/Ether

c)

X2/H2O

d)

X2/CCl4

3.

a)

55 – 60 ℃

b)

50 – 55 ℃

c)

Heated

d)

Cold diluted

4.

What is the product of alkane bromination?

a)

b)

c)

d)

5.

What is reagent D used in nitration reaction??

a)

KMnO₄

b)

conc HNO₃, Conc H₂SO₄

c)

conc HNO₂, Conc H₂SO₄

d)

conc H₂SO₄

6.

What is reagent B?

a)

CH₃CH₂Br, AlBr₃

b)

CH₃Cl, AlCl₃

c)

CH₃CH₂Cl, FeCl₃

d)

CH₃CH(CH₃), AlCl₃

7.

a) What catalyst is needed for hydrogenation?
b) What is needed for halogenation?

a)

a) Pt, Pd or Ni
b) UV ligth

b)

a) H⁺
b) Heat

c)

a) [O]
b) Heat

d)

a) [-O]
b) H⁺

8.

What is the product E

a)

b)

c)

no reaction

d)

9.

What is the product F?

a)

b)

c)

d)

10.

What is product G?

a)

b)

c)

d)

11.

Which reaction type is the following:

C₅H₁₀ + O₂ --> CO₂ + H₂O

a)

Decomposition

b)

Synthesis

c)

Complete Combustion

d)

Double Replacement

12.

Can alkanes undergo reactions?

a)

Yes, they can undergo substitution reactions like halogenation

b)

No, they cannot undergo any reactions

c)

No, the stable molecules do not like to react

d)

Yes, they undergo hydrogenation

13.

What colour does bromine water turn in the presence of an alkene

a)

Orange

b)

Blue

c)

Colourless

d)

Green

14.

What is the observation obtained when alkene react with acidified KMnO₄

a)

decolourize purple solution

b)

decolourize reddish brown solution

c)

decolourize blue solution

d)

yellow precipitate formed

15.

what is the name of the reaction when alkenes react with HCl?

a)

Hydrogenation

b)

Halogenation

c)

Hydrohalogenation

d)

Hydration

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