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ORGANIC CHEMISTRY QUIZ 4

Total questions: 10

Worksheet time: 7mins

Name
Class
Date
1.

What will be formed when 2-methylpent-2-ene react with hot and concentrated KMnO4?

a)

Propanoic acid

  • +

  • Propanone

b)

Propanoic acid

  • +

  • ethanone

c)

Propanone

  • +

  • Propanal

d)

Both propanone

2.

How to differentiate between methylbenzene and ethylbenzene?

a)

Use concentrated HNO3 and H2SO4 in different temperature

b)

Use hot and conc. KMnO4 followed by limewater

c)

Add excess conc. HNO3 and conc. H2SO4

d)

Free radical substitution by Cl2 in the presence of UV

3.

What will be formed if toulene + excess Br2 in the presence FeBr3 at 90'c

a)

2,4,6-tribromootoluene

b)

2-bromotoluene

c)

tribromomethylbenzene

d)

2-bromotoluene

and

4-bromotoluene

4.

2-phenylbut-1-ene + HCl -------------> ?

a)

None from above

b)

1-chloro-2-phenylbutane

c)

1,2-dichloro-2-phenylbutane

d)

2-chloro-2-phenylbutane

5.

How to produce Grignard reagent ?

a)


Haloalkane + magnesium

(dry ether at -10'c)

b)

Haloalkane + lithium

(dry ether at -10'c)

c)

Haloalkane + lithium

(dry ether + warm)

d)

Haloalkane + magnesium

(dry ether + warm)

6.

What will be formed when CH3CH2CHBr2 react with KOH (aq) ?

a)

Propanal

b)

Propanone

c)

Propanoic acid

d)

propan-1,1-diol

7.

What type of reaction when CH3Cl reacts with ethanolic KCN?

a)

Elimination

b)

Electrophilic substitution

c)

Electrophilic aromatic substitution

d)

Nucleophilic substituiton

8.

Which compound will tend to undergo Sn1 mechanism of hydrolysis

a)

CH3Cl

b)

(CH3)2CHCl

c)

(CH3)3CCl

d)

(CH3)4C

9.

What reaction is when CH2=CH2 --------> CH3CH2OH

a)

Electrophilic substitution

b)

Electrophilic addition

c)

Nucleophilic addition

d)

Nucleophilic substitution

10.

What is true for -Cl group that attached to benzene

a)

Activating group
+
ortho-para directing

b)

Deactivating group
+
ortho-para directing

c)

Activating group
+
meta directing

d)

Dectivating group
+
meta directing