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STOGS Y12 Basic Organic Concepts

Total questions: 24

Worksheet time: 17mins

Name
Class
Date
1.

Define electrophile

(a)  

2.

Give the reagents and conditions needed to form propanol from propene

a)

H2SO4/Heat

b)

H3PO4/Steam

c)

NaOH (aq)

3.

Double bonds can lead to E/Z stereoisomerism because they do not (a)   .

4.

What is needed in the initiation step of radical substitution?

(a)  

5.

A σ bond is formed from the direct, ____-__-____ overlap of orbitals

(a)  

6.

Give the reagents and conditions needed to form dichloropropane from propene

a)

HCl

b)

Cl2

c)

Cl2/UV

7.

What is the name of the mechanism for the formation of a dihaloalkane from a halogen and an alkane?

(a)  

8.

Which arrow is correct for the electrophilic addition mechanism?

a)
b)
9.

Q) Define homologous series

A) Series of compounds with same (a)   group, each successive member differs by CH2

10.

Straight chain alkanes have a (a)   boiling point than branched chain alkanes

11.

Longer alkanes have a higher boiling point because there is more surface contact leading to more (a)   forces

12.

What is the general formula of alkenes

(a)  

13.

Q) Explain why 2-bromopropane is the major product.

A) It has the ______ _______ ____________ ______________

(a)  

14.

Give the reagents and conditions needed to form chloropropane from propene

a)

HCl

b)

Cl2/UV

c)

Cl2

15.

In organic chemistry, commas separate....

a)

numbers

b)

names from numbers

16.
In organic chemistry, dashes separate....
a)
numbers
b)
names from numbers
17.
What is the structure of 2-methyl pent-2-ene ?
a)
a
b)
b
c)
c
d)
d
18.

Name the following molecule:

a)

3,3-dimethyl-1-butanol

b)

3,3-methyl-1-butanol

c)

2,2-dimethyl-4-butanol

d)

3,3,3-trimethyl-1-propanol

19.

Which is the structures with IUPAC nomenclature


2,2,4-trimethylpentane

a)
b)
c)
d)
20.

How many structural isomers does C5H12 have?

a)

2

b)

3

c)

5

d)

9

21.

Give IUPAC nomenclature for this compound

a)

2,7-dimethyl-5-ethyloctane

b)

5-ethyl-2,7-dimethyloctane

c)

2,7-dimethyl-3-ethyloctane

d)

4-ethyl-2,7-dimethyloctane

22.

Ethane reacts with bromine under suitable condition.

Which is the product during the initiation step?

a)

bromine ion

b)

ethyl radical

c)

bromine radical

d)

hydrogen radical

23.

What is the condition for hydration of butene ?

a)

phosphoric acid, 60 atm, 300 0C

b)

Nickel or platinum, 180 oC

c)

1000atm, 200 oC

d)

room temperature

24.

Which of the following is the monomer for this polymer ?

a)

ethene

b)

ethane

c)

propane

d)

propene