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ORGANIC CHEMISTRY SEMESTER 1 FINAL REVIEW

Total questions: 88

Worksheet time: 2hrs 45mins

Name
Class
Date
1.
Organic compounds are compounds contain ______________.
a)
O
b)
C
c)
N
d)
S
2.
Is this hydrocarbon saturated or unsaturated? 
a)
saturated
b)
unsaturated
3.
What type of molecule is it:
a)
alkene
b)
alkyne
c)
alkane
d)
amino acid
4.
Give the name of this compound...
C3H8
a)
Propene
b)
Butyne
c)
Butene
d)
Propane
5.
The molecular formula for Heptane is
a)
C4H10
b)
C8H18
c)
C5H12
d)
C7H16
6.
Which of the following elements is required in an organic compound?
a)
nitrogen
b)
oxygen
c)
carbon
d)
sodium
7.
Is NaCl (table salt) a Organic or Inorganic Compound?
a)
Inorganic
b)
Organic
8.
Name this alkane.
a)
propane
b)
octane
c)
hexane
d)
butane
9.
How many carbon atoms are in ethane?
a)
1
b)
2
c)
3
d)
4
10.
The following is an example of an
a)
Alkane
b)
Alkene
c)
Alkyne
11.

Single bonded carbons are called _________.

a)

Alkanes

b)

Alkynes

c)

Alkenes

d)

Arenes

12.

Triple bonded carbons are called ________.

a)

Alkanes

b)

Alkenes

c)

Alkynes

d)

Arenes

13.

Which of the following is the most saturated hydrocarbon?

a)

Alkanes

b)

Alkenes

c)

Alkynes

d)

Arenes

14.

Which of the following prefixes represents "7"?

a)

prop-

b)

but-

c)

hept-

d)

pent-

15.

What is the common name given to this alkyl branch?

a)

Propyl

b)

Methyl

c)

Isopropyl

d)

Ethane

16.

What is the common name for alkyl branch A in the image?

a)

sec-butyl

b)

propyl

c)

neopentyl

d)

isopropyl

17.

What is the prefix used when referring to ring structures?

a)

Pyro-

b)

Aro-

c)

Cyclo-

d)

None of the above

18.

What is the parent name of this structure?

a)

nonane

b)

pentane

c)

heptane

d)

cyclohexane

19.

At which end should you begin numbering the carbons?

a)

Left to right

b)

Right to left

c)

Neither

20.

Which of the following is the correct IUPAC name for this structure?

a)

3-methyl-4-isopropyl-5-methyl-6-methylheptane

b)

2,3,5-trimethyl-4-isopropylheptane

c)

4-isopropyl-3,5,6-trimethylheptane

d)

4-isopropyl-2,3,5-trimethylheptane

21.

What is the hybridization of a linear molecule?

a)

sp

b)

sp2

c)

sp3

d)

sp3d

22.

Which of the following images represents a Trigonal Planar molecular geometry?

a)
b)
c)
d)
23.

What is the hybridization of this molecule shown above

a)

sp

b)

sp2

c)

sp3

d)

sp4

24.

What is the bond angle for the CH4 molecule?

a)

120°

b)

107°

c)

109.5°

d)

90°

25.

What is the hybridization of the central atom of a bent molecule? (AB2E2)

a)

sp

b)

sp2

c)

sp3

d)

sp3d

26.

Determine the hybridization of the given structure.

a)

sp

b)

sp2

c)

sp3

d)

sp3d

27.
Carbon atom undergo
a)
sp hybridization
b)
sp2 hybridization
c)
sp3 hybridization
d)
dsp3 hybridization
28.
Nitrogen atom undergo
a)
sp hybridization
b)
sp2 hybridization
c)
sp3 hybridization
d)
dsp3 hybridization
29.

How many valency does carbon have

(a)  

30.

Isomers are organic compounds having same ______ formula and different _______ formula .

(a)  

31.

CnH2n+2 is the general formula for (a)   series .

32.

Alkynes are (a)   bonded compounds

33.

Alkene are (a)   compounds

34.

Organic Compound having 3 carbon atoms in a chain has root word as (a)  

35.

What is the conjugate acid for the base NH3?

a)

NH4+

b)

NH2-

c)

NH52+

d)

HCl

36.

What is the conjugate base of HCl?

a)

Cl-

b)

H2Cl+

c)

HCl

d)

H2O

37.
Which of the following is NOT a property of a base? 
a)
Conduct electricity
b)
Change the color of an indicator solution
c)
Taste sour
d)
Are slippery when mixed with water
38.

According to ___________________, a base is any substance that donates OH- ions in aqueous solutions.

a)

Arrhenius

b)

Bronsted-Lowry

c)

Lewis

d)

Newman-Wright

39.

According to ___________________, a base is any substance that accepts a proton.

a)

Arrhenius

b)

Bronsted-Lowry

c)

Lewis

d)

Newman-Wright

40.
A ________________ acid ionizes (dissociates) completely. 
a)
Strong
b)
Weak
c)
Medium
d)
Moderate
41.
A reaction in which H+ and OH- cancel each other out is known as a __________________ reaction. 
a)
Neutralization
b)
Combustion
c)
Single Replacement
d)
Synthetic 
42.
To find the pH of a solution you take the _______________ of the H3O+ concentration. 
a)
-log
b)
log
c)
cos
d)
tan
43.
What is the conjugate base in the following reaction?
a)
HCO3- 
b)
HCl
c)
 H2CO3 
d)
Cl-
44.
What is the conjugate base of HCO3-?
a)
HCO3-
b)
H2CO3-
c)
H2CO3
d)
CO32-
45.
Tastes Sour
a)
Acids
b)
Bases
c)
Salts
d)
All
46.
Tastes bitter.
a)
Acids
b)
Bases
c)
Salts
d)
All
47.

sodium hydroxide (NaOH)

a)

strong acid

b)

weak acid

c)

strong base

d)

weak base

48.

BASE + ACID ----> SALT + ???

a)

water

b)

oxygen

c)

hydrogen ion

d)

hydroxide ion

49.

A solution has an H3O+ concentration of 10^-4 M. Determine its pH.

a)

10

b)

6

c)

4

d)

8

50.

Which of the following are bases? Select all that apply.

a)

Ca3(PO4)2

b)

LiOH

c)

RbOH

d)

HNO3

51.

Which of the following are acids? Choose all that apply.

a)

HBr

b)

LiOH

c)

HClO

d)

LiNO2

52.

Chemists use the____________ scale – a number scale from 0 to 14–to describe the concentration of hydronium ions in a solution.

a)

pH

b)

pOH

c)

buffer

d)

electrolyte

53.

This solution is filled with:

a)

Weak Acid

b)

Strong Base

c)

Strong Acid

d)

Weak Base

54.

Which of these "HOY" acids is the weakest?

a)

HOCl

b)

HOI

c)

HOBr

d)

All of these are equally strong.

55.

Which of these is the strongest Bronsted base?

a)

F-

b)

Cl-

c)

Br-

d)

I-

56.

Rank the following from lowest to highest acidity:

HF, H2O, NH3, CH4 (trend with electronegativity)

a)

HF, H2O, NH3, CH4

b)

CH4, NH3, H2O, HF

c)

NH3, H2O, HF, CH4

d)

CH4, H2O, NH3, HF

57.
An acid that breaks apart completely. 0-4 on the pH scale,
a)
Strong Acid
b)
Weak Acid
c)
Weak Base
d)
Strong Base
58.

Which pH levels indicated a strong acid?

a)

1-3

b)

4-6

c)

8-11

d)

12-14

59.
An acid that does not break apart completely.
Range from 4-7 on the pH scale.
a)
Strong Acid
b)
Strong Base
c)
Weak Acid
d)
Weak Base
60.

What is the IUPAC name of the following molecule?

a)

2-bromo-3-ethylbutane

b)

3-methyl-4-bromopentane

c)

2-ethyl-3-bromobutane

d)

2-bromo-3-methylpentane

61.

Which functional group is surrounded in the molecule?

a)

hydroxyl

b)

carboxyl

c)

carbonyl

d)

ether

62.

Which compound is not in the same homologous series as the others?

a)

C5H12

b)

C6H12

c)

C7H16

d)

C8H18

63.

What is the IUPAC name of this molecule?

a)

1,1,2,4-tetramethylpent-1-ene

b)

2,4,5-trimethylhex-4-ene

c)

2,4,5,5-tetramethylpent-4-ene

d)

2,3,5-trimethylhex-2-ene

64.

Which functional groups are present in this molecule?

a)

carbonyl, ether, nitrile

b)

carbonyl, ester, nitrile

c)

carboxyl, ether, amine

d)

carboxyl, ester, amine

65.

What is the IUPAC name of the molecule shown?

a)

2,4-dimethylhexane

b)

3,5-dimethylhexane

c)

2-methyl-4-ethylpentane

d)

2-ethyl-4-methylpentane

66.

What is the name of this compound, applying IUPAC rules?

a)

4-methylhex-2-ene

b)

4-ethylpent-2-ene

c)

2-ethylpent-3-ene

d)

3-methylhex-4-ene

67.

IUPAC name of the given compound is :

a)

1-Ethoxy-2, 2-dimethylcyclohexane

b)

2-ethoxy-1, 1-dimethylcyclohexane

c)

1,1-Dimethyl-2-ethoxycyclohexane

d)

2-methyl-1,1-ethoxycyclohexane

68.

a)

2,3,3-trimethylhexane

b)

4,4,5-trimethylhexane

69.

a)

1-bromo-3,3-dicholoro-1-methylpropane

b)

2-bromo-4,4-dicholorobutane

c)

3-bromo-1,1-dichlorobutane

70.

Which is the structures with IUPAC nomenclature


2,2,4-trimethylpentane

a)
b)
c)
d)
71.

Which of the correct following step to numbering parent chain?

a)
b)
c)
d)
72.

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

73.

What is the IUPAC name of the following alkane?

a)

propylcylopropane

b)

cyclopropylpropane

c)

ethylcyclopropane

d)

cycopropylethane

74.

What is the IUPAC name the following compound?

a)

Z-2-methylpropene

b)

E -2-methylpropene

c)

2-methylpropene

d)

2-methyl-2-propene

75.

Choose the correct position of the substituents of the following compound.

a)

2-ethyl and 3-methyl

b)

3-ethyl and 4-methyl

c)

1-ethyl and 2-methyl

d)

3-methyl and 4-ethyl

76.
a)

2 - Ethyl pentane

b)

2 - Ethyl pent - 3 - ene

c)

2 - Ethyl pent - 1 - ene

d)

2 - Ethyl pent - 2 - ene

77.

Find the IUPAC name

a)

2, 4, 4 - Trimethyl pentane

b)

2, 2, 4 - Trimethyl pentane

c)

2, 2, 4 - Trimethyl butane

d)

2, 3, 4 - Trimethyl pentane

78.

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

79.
How many carbons are in the longest chain of the following molecule:
a)
11
b)
10
c)
9
d)
8
80.
a)
2,3-dimethyl-4,4-diethyl heptane
b)
2,3-methyl-4,4-ethyl heptane
c)
4,4-ethyl-2,3-methyl heptane
d)
4,4-diethyl-2,3-dimethyl heptane
81.

Given a formula representing a compound:Which formula represents an isomer of this compound?

a)
b)
c)
d)
82.

Given the compound:


Which structural formula represents an isomer?

a)
b)
c)
d)
83.

Which is an isomer of

a)
b)
c)
d)
84.

In a stereoisomer, ________ means "on the same side" and ______ means "across from."

a)

cis; trans

b)

cis; L

c)

D; L

d)

trans; cis

85.
Which of the following is true about structural isomers?
a)
Have the same molecular formula
b)
Have different physical and chemical properties.
c)
Have the same number of elements
d)
all of the above
86.

Requirement for geometric stereo-isomers is

a)

presence of different atoms

b)

presence of metals only

c)

presence of double bonds

d)

presence of single bonds only

87.

This molecule represents a ______.

a)

cis- orientation

b)

trans- orientation

c)

neither cis- nor trans-

88.

This molecule represents a ______.

a)

cis- orientation

b)

trans- orientation

c)

neither cis- nor trans-

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