Brainscape's Knowledge GenomeTM

Browse over 1 million classes created by top students, professors, publishers, and experts.


See full index

Organic and Biochemistry > Chem Chapter 1120, 12, 13 > Flashcards

Chem Chapter 1120, 12, 13 Flashcards

1
Q

A section of the Periodic Table containing main group elements is shown. If the elements W, X, Y, and Z have electronegativity values of 1.0, 2.0, 2.5, and 3.5, respectively, which bond is ionic?

XZ
XY
YZ
WZ
WY

A

WZ

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

Which molecule will undergo only London dispersion forces when interacting with other molecules of the same kind?

HF
NaC2H3O2
C2H5OH
CH2Cl2
C4H10

A

C4H10

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

Which statement best describes the way a catalyst works?

It increases the value of ΔH.
It increases the value of ΔG.
It decreases the value of Eact.
It increases the value of Eact.
It decreases the value of ΔH.

A

It decreases the value of Eact

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

Which of the following cannot have hydrogen bonds?

HF
NH3
H2O
CH3NH2
HCL

A

HCL

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

Which factors would increase the rate of a chemical reaction?

I. Increasing the temperature
II. Removing products as they are formed
III. Adding a catalyst

I and II
II and III
I, II, and III
I only
II only

A

I, II, and III

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

Which pair of molecules has the strongest dipole-dipole interactions?

CO2 and CH4
CH4 and CH4
NH3 and NH3
NH3 and CH4
CO2 and CO2

A

NH3 and NH3

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

Which change to this reaction system would cause the equilibrium to shift to the right?

N2(g) + 3 H2(g) 2 NH3(g) + heat

removal of H2(g)
addition of a catalyst
lowering the temperature
addition of NH3(g)
heating the system

A

lowering the temperature

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

C5H5N + H2CO3 (arrow) C5H6N+ + HCO3-

In the reaction shown, the conjugate acid of C5H5N is

HCO3-.
H3O+.
H2CO3.
C5H6N+.
C5H5N.

A

C5H6N+.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

A necessary requirement for a Brønsted base is

-a lone pair of electrons in its Lewis dot structure.
-the presence of a metal ion in its formula.
-the production of hydronium ion upon reaction with water.
-the presence of hydroxide in its formula.
-the presence of water as a reaction medium.

A

a lone pair of electrons in its Lewis dot structure.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

In the following equation, which of the following is acting as the Bronsted acid?

HClO4 + H2O → ClO4- + H3O+

-H3O+
-ClO4-
-H2O
-HClO4

A

HClO4

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q

Write the equilibrium expression for the following reaction:

4 HNO3(l) (arrow) 4 NO2(g) + 2 H2O(g) + O2(g)

-[HNO3]4/[NO2]4 [H2O]2 [O2]
-[NO2]4 [H2O]2 [O2]
-[NO2]4 + [H2O]2 + [O2]
-[NO2]4 [H2O]2 [O2]/[HNO3]4
-1/[NO2]4 [H2O]2 [O2]

A

[NO2]4 [H2O]2 [O2]

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q

Consider the reaction:

2 CO(g) + O2(g) (arrow) 2 CO2(g)

The equilibrium expression for this reaction is:

A
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
13
Q

Hydrogen cyanide, HCN, is a weak acid. Which equation best represents its aqueous chemistry?

-HCN(aq) + H2O(l) (arrow) H2CN+(aq) + OH-(aq)
-HCN(aq) (arrow) H+(aq) + CN-(aq)
-HCN(aq) (arrow) H-(aq) + CN+(aq)
-H2O(l) (arrow) H+(aq) + OH-(aq)
-HCN(aq) + H2O(l) (arrow) CN-(aq) + H3O+(aq)

A

HCN(aq) + H2O(l) (arrow) CN-(aq) + H3O+(aq)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q

A bond where the electrons are shared equally is called a(an) ________ bond.

ionic
nonpolar covalent
polar covalent
coordinate covalent
none of the above

A

nonpolar covalent

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
15
Q

A Brønsted-Lowry base is a substance which

-accepts protons from other substances.
-produces hydrogen ions in aqueous solution.
-accepts hydronium ions from other substances.
-donates protons to other substances.
-produces hydroxide ions in aqueous solution.

A

-accepts protons from other substances

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
16
Q

Consider the reaction shown:

452 kcal + 4 PCl5(s) → P4(s) + 10 Cl2(g)

This reaction is ________ because the sign of ΔH is ________.

exothermic; positive
endothermic; positive
exothermic; negative
exothermic; neither positive nor negative
endothermic; negative

A

endothermic; positive

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
17
Q

Given the following reaction, the equilibrium expression will be:

C(s) + 2 H2(g) (arrow) CH4(g)

-[H2]2[C]/[CH4]

-[CH4]/[H2]2

-[CH4][C] [H2]2

-[CH4]/[C] [H2]2

-k[C][H2]

A

[CH4]/[H2]2

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
18
Q

Consider the reaction shown:

C3H8 + 5 O2 → 3 CO2 + 4 H2O + 488 kcal

We can say that this reaction is ________ and that the sign of ΔH is ________.

-endothermic; positive
-exothermic; negative
-exothermic; neither positive nor negative
-endothermic; negative
-exothermic; positive

A

-exothermic; negative

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
19
Q

-exergonic; slower than
-exergonic; at the same rate as
-endergonic; faster than
-exergonic; faster than
-endergonic; slower than

A

-endergonic; faster than

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
20
Q

Based on the reaction shown, which statement is true?

S + O2 → SO2 + 70.8 kcal

-70.8 kcal are consumed when 1 g of sulfur reacts.
-70.8 kcal are consumed when 32.1 g of sulfur reacts.
-70.8 kcal are produced when 1 g of sulfur reacts.
-70.8 kcal are produced when 1 g of sulfur dioxide is produced.
-70.8 kcal are produced when 32.1 g of sulfur reacts.

A

70.8 kcal are produced when 32.1 g of sulfur reacts.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
21
Q

The functional group which illustrates an ester is

A
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
22
Q

The condensed structure of 2,4-dimethylheptane is

A
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
23
Q

Which is not a property of most alkanes?

-burn readily in an open flame
-soluble in water
-light odor
-colorless
-they are all properties of alkanes

A

soluble in water

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
24
Q

Select the line structure for the following condensed formula:

A
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
25
Q

All of the following statements are general properties of organic compounds except

-the bonds are covalent.
-they have relatively low boiling points.
-they have relatively low melting points.
-they usually behave as electrolytes in solution.
-they have limited or no water solubility.

A

-they usually behave as electrolytes in solution.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
26
Q

The functional group illustrated by R—O—R’ is an

-aldehyde
-alkyl
-alcohol
-ester
-ether

A

ether

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
27
Q

What are the two major functional groups in lactic acid?

-ketone and diol
-alkane and alcohol
-carboxylic acid and alcohol
-aldehyde and alcohol
-carboxylic acid and ether

A

-carboxylic acid and alcohol

28
Q

Which list includes all the elements that would be found in an alkane with an amine group?

-H, N
-C, H, O
-C, H, O, H
-C, H
-C, H, N

A

C, H, N

29
Q

Which atom is least likely to form a polar covalent bond with carbon?

F
H
O
N
Cl

A

H

30
Q

The carbon skeleton of an alkane is shown below. How many hydrogen atoms are bonded to the carbon marked with a *?

0
1
2
3
4

A

0

31
Q

When hydrocarbons undergo incomplete combustion, the product(s) is(are)

-CO2 and O2.
-CO2 and H2O.
-H2O.
-H2O and O2.
-CO, H2O and soot.

A

-CO, H2O and soot.

32
Q

What is the IUPAC name of the compound shown?

-3-hexyl-2-methylhexane
-4-propyldecane
-4-sec-butyldecane
-4-isopropyldecane
-4-isobutyldecane

A

-4-isopropyldecane

33
Q

How many hydrogens are present in a molecule composed of a six membered ring of carbon atoms and no double or triple bonds?

10
12
24
16
14

A

12

34
Q

Which molecule is not an isomer of the molecule shown?

A
35
Q

What is the relationship between the following molecules?

-They are different molecules which are not isomers.
-They are identical.
-They are isomers of each other.
-none of the above

A

-They are identical.

36
Q

The carbon atom marked with * is a ________ carbon atom.

secondary
primary
tertiary
quaternary
none of these

A

primary

37
Q

When an alkane reacts with an element from group 7A, the reaction is referred to as

combustion.
displacement.
oxidation.
decomposition.
halogenation.

A

halogenation

38
Q

Which of the following is a correct line structure drawing for 3-ethyl-2,4-dimethylhexane?

A

All answers are correct

39
Q

The alkyne functional group has

-a carbon-oxygen-hydrogen group.
-one or more bonds between carbon and nitrogen.
-a carbon-carbon triple bond.
-a double bond between carbon and oxygen.
-a six-membered ring with three double bonds.

A

-a carbon-carbon triple bond.

40
Q

A correct name for the following compound is

-1-bromo-1-ethyl-2-methylcyclopropane.
-1-bromo-2-ethyl-1-methylcyclopropane.
-1-bromo-3-ethyl-3-methylcyclopropane.
-2-bromo-1-ethyl-2-methylcyclopropane.
-1-bromo-3-ethyl-1-methylcyclopropane.

A

-1-bromo-2-ethyl-1-methylcyclopropane.

41
Q

All of the following are representations of the same molecule except

A
42
Q

How many carbon atoms are there in the longest continuous chain of the molecule shown?

-4
-8
-3
-6
-cannot be determined without additional information

A

6

43
Q

The term used to describe the geometry of a carbon atom involved in a double bond is

linear.
trigonal planar.
tetrahedral.
distorted tetrahedral.
perpendicular.

A

trigonal planar.

44
Q

The name of the polymer formed from CH2=CH2 is

polyvinyl chloride.
polyethylene.
polystyrene.
polypropylene.
none of the above

A

polyethylene.

45
Q

The bond angle about a carbon atom involved in a triple bond is

105°.
109.5°.
90°.
180°.
120°.

A

180°.

46
Q

Predict the product of the following reaction:

A
47
Q

The monomer used to make the polymer polyvinyl chloride is

A
48
Q

According to Markovnikov’s rule, when HCl reacts with the molecule shown, which product will result?

A
49
Q

Which of the following is(are) aromatic compounds?

A
50
Q

The name of the molecule shown is

-monochloro-2-cis-pentene.
-trans-3-chloro-2-pentene.
-cis-3-chloro-3-pentene.
-cis-3-chloro-2-pentene.
-trans-3-chloro-3-pentene.

A

-trans-3-chloro-2-pentene.

51
Q

Which of the following compounds contains an alkene functional group?

A
52
Q

The most common reactions involving aromatics are ________ reactions.

-elimination
-addition
-substitution
-reduction
-oxidation

A

substitution

53
Q

Alkanes and alkenes are similar in all of the following properties except

-flammability.
-lack of toxicity.
-solubility in non-polar solvents.
-insolubility in water.
-reactivity.

A

-reactivity.

54
Q

Using systematic names, the structure shown could be called

-1,3-dimethylbenzene.
-1,2-dimethylbenzene.
-ortho-dimethylbenzene.
-meta-dimethylbenzene.
-para-dimethylbenzene.

A

-para-dimethylbenzene.

55
Q

What is the IUPAC name of the molecule shown?

diethylene
1,2-butadiene
1,3-butadiene
1,4-butadiene
1,1-butadiene

A

1,3-butadiene

56
Q

Which of the following is a correct line bond structure for 2,5- dimethyl-3-hexyne?

A
57
Q

What is the IUPAC name of the molecule shown?

5-ethyl-1-hexene
3-methyl-6-heptene
2-ethyl-5-hexene
5-methyl-1-heptene
octene

A

5-methyl-1-heptene

58
Q

Which molecule can have cis-trans isomers?

(CH3)2C=CHCH3
CH3CH=CHCl
CH3CH=CCl2
CH3CH=C(CH3)2
(CH3)2C=C(CH3)2

A

CH3CH=CHCl

59
Q

What is the name of the product when 1-pentene reacts with Cl2?

2,2-dichloropentane
2,3-dichloropentane
1,2-dichloropentane
1,1-dichloropentane

A

1,2-dichloropentane

60
Q

In organic chemistry, the term unsaturated means a molecule

-that can react by taking up one or more water molecules.
-with a specific six-membered ring structure.
-that contains one or more multiple bonds between carbon atoms.
-that is formed from many smaller molecules.
-that has the maximum number of carbon-hydrogen bonds possible.

A

-that contains one or more multiple bonds between carbon atoms.

61
Q

Which reactant should be used to convert propene to 2-chloropropane?

BrCl
NaCl
Cl2
H2
HCl

A

HCl

62
Q

What is the name of the following compound?

-m-ethylbenzene
-o-ethylphenol
-m-ethylphenol
-p-ethylphenol

A

-m-ethylphenol

63
Q

Chemical reactions involving double bonds are generally referred to as ________ reactions.

-combustion
-addition
-reduction
-oxidation
-substitution

A

addition

64
Q

A substitution reaction can best be described as a reaction in which

-a hydrocarbon reacts with oxygen to produce CO2, H2O, and energy.
-two reactants combine to form one new product with no extra atoms.
-a single reactant splits into two products.
-two reactants exchange atoms to give two new products.
-a single reactant undergoes reorganization of its chemical bonds, producing an isomer of the reactant.

A

-two reactants exchange atoms to give two new products.

65
Q

What is the IUPAC name of the compound shown?

-trans-4,6-dimethyl-2-heptene
-cis-4,6-dimethyl-2-heptene
-cis-2-nonene
-trans-2-nonene
-trans-2,4-dimethyl-5-heptene

A

trans-4,6-dimethyl-2-heptene

Organic and Biochemistry (8 decks)

Brainscape helps you reach your goals faster, through stronger study habits.
© 2024 Bold Learning Solutions. Terms and Conditions