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Organic Chem 1 @Patri

Total questions: 29

Worksheet time: 2hrs 25mins

Name
Class
Date
1.

Total number of substituent present in the above compound is ?

a)

1

b)

2

c)

3

d)

4

2.

IUPAC name will be :

a)

Hex-5-en-1-yne

b)

Hex-1-en-5-yne

c)

Hex-6-en-1-yne

d)

Hex-1-en-6-yne

3.

How many secondary carbon and hydrogen atoms are present in the molecule given below respectively?

a)

2,3

b)

2,2

c)

3,3

d)

2,0

4.

Which IUPAC Name is correct for the given compound?

a)

3,7-dimethylocta-2,6-dienal

b)

2,6-dimethyloct-2,6-dienal-8

c)

7-formyl-2,6-dimethylhept-2,6-diene

d)

7-aldo-2,6-dimethylhept-2,6-diene

5.

The IUPAC name of the compound is?

a)

trans-2-chloro-3-iodo-2-pentene

b)

cis-2-chloro-3-iodo-2-pentene

c)

trans-3-iodo-4-chloro-3-pentene

d)

cis-3-iodo-4-chloro-3-pentene

6.

What is the by product of this reaction?

a)

HBr

b)

H2

c)

H2O

7.

Light or heat is required for which step in the halogenation of alkane?

a)

initiation

b)

propagation

c)

termination

8.

What are the reagents required for the following reaction?

a)

H2O, NaOH

b)

H2O, H2SO4

9.

Which one is the Markovnikov's Product of the HBr addition to the following compound?

a)
b)
10.
How many carbon atoms are in propane
a)
1
b)
2
c)
3
d)
4
11.
What is the general formula of an alkane
a)
2n+2
b)
CnH2n+2
c)
CnH2n
d)
CnHn
12.
Name this alkane
a)
Methane
b)
Ethane
c)
Propane
d)
Butane
13.
Hydrocarbons are compounds that contain
a)
Carbon, only
b)
Carbon and Hydrogen, only
c)
Carbon, Oxygen, and Hydrogen, only
d)
Carbon, Oxygen, Hydrogen, and Nitrogen, only
14.
The longer the hydrocarbon, the _______ the boiling point
a)
Lower
b)
Higher
15.

Which of the following has the highest boiling point?

a)

heptane

b)

pentane

c)

nonane

16.
Name the compound.
a)
hexane
b)
2,3-dimethylbutane
c)
ethylbutane
d)
2,2-dimethylbutane
17.

How to determine that a molecule exhibit cis-trans isomerism?

a)

Restricted rotation in a carbon-carbon single bond of alkenes

b)

Each carbon of a site of restricted rotation has 2 different atoms or groups attached to it

c)

Exist in cyclic compouds only

d)

Similar chemical properties

18.

Two optical isomers have the same

a)

Empirical formula

b)

Structural formula

c)

Molecular formula

19.

Isomerism exhibited by acetic acid and methyl formate is

a)

position

b)

chain

c)

functional

d)

metamerism

20.

Which of the following compound(s) exhibit(s) cis-trans isomerism?

(1) 1,2-dibromo-1,2-dichloroethene

(2) 3,3-dibromo-2-chloropropene

(3) 1,2-dichloropropene

a)

(1) only

b)

(2) only

c)

(1) and (3) only

d)

(2) and (3) only

21.

Which of the following compounds exhibits stereoisomerism?

a)

Butanal

b)

Propenoic acid

c)

1-bromohexane

d)

3,4-dichloropent-1-ene

22.

Chlorination of alkanes is an example of

a)

Elimination reaction

b)

Free radical substitution reaction

c)

Nucleophilic substitution reaction

d)

Electrophilic addition reaction

23.

Which of these has only one transition state?

a)

SN1

b)

SN2

24.

Which of these has an intermediate state?

a)

SN1

b)

SN2

25.

Which of these is a one step reaction?

a)

SN1

b)

SN2

26.

Which of these is a two step reaction?

a)

SN1

b)

SN2

27.

The rate of SN2 reaction is controlled by

a)

The substrate only

b)

The nucleophile only

c)

Both substrate and nucleophile

28.

Which of these is bimolecular?

a)

SN1

b)

SN2

29.

Primary carbocations have more positive inductive effect than secondary?

a)

Yes, always

b)

Yes, sometimes

c)

No, never