Brainscape's Knowledge GenomeTM

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


See full index

PreBoards > Module 1 > Flashcards

Module 1 Flashcards

Sample Questions

1
Q

The following are properties of organic compounds, EXCEPT:

o Bonding is almost entirely covalent.

o Many are soluble in water

o Most are insoluble in water

o Reactions are very slow

A

Most are insoluble in water

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

Which of the following atoms is not commonly encountered in organic compounds?

o HYDROGEN
o IRON
o CARBON
o OXYGEN

A

Iron

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

Which of the following statements concerning organic compounds is correct?

o Organic compounds are found only in non-living systems.

o Organic compounds are always soluble in water.

o Organic compounds cannot be found in nature; they must be synthesized in a laboratory.

o Organic compounds always contain the element carbon

A

Organic compounds always contain the element carbon.

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

Which of the following terms refer to the collection of atoms at a site that have a characteristic behavior in all molecules where it
occurs?

o Functional group

o Carboxyl group

o Halogen group

o Carbonyl group

A

Functional group

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

What is the label of the bond between the first two carbon atoms starting from the left?

CH3-CH=CH-CH2CH3

o δ sp2-sp2
o δ sp3-sp3
o δ sp-sp2
o δ sp3-sp

A

δ sp3-sp3

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

When one s orbital is mixed with two p orbitals, it will result to:

o sp hybridization
o sp3 hybridization
o s hybridization
o sp2 hybridization

A

sp hybridization

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

What is the composition of bonds in a compound containing triple bond?

o One sigma bond two pi bonds
o Two pi bonds and two sigma
bonds
o Two sigma bonds and one pi bond
o One pi bond and one sigma bond

A

One sigma bond two pi bonds

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

Which of the following statements is not true regarding resonance structures?

o All resonance structures must have the same number of electrons

o All resonance structure must differ in the hybridization of atoms.

o All resonance structures must have the same arrangement of atoms

o All resonance structures must be valid Lewis structure

A

All resonance structure must differ in the hybridization of atoms

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

Consider the molecule
(Insert photo)

o sp2 sp2 sp2 sp3 sp
o sp2 sp2 sp3 sp3 sp3
o sp2 sp2 sp3 sp3 sp2
o sp2 sp sp sp2 sp

A

sp2 sp2 sp2 sp3 sp

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

When a carbon atom has sp3 hybridization, it has

o Four p bonds
o Three p bonds and one s bond
o Four s bonds
o Two p bonds and two s bonds

A

Two p bonds and two s bonds

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

Electronegativity is a concept that is useful along with other concepts in:

o Predicting the polarity of a bond.
o Deciding how many electrons are involved in a bond.
o Formulating a statement of the octet rule.
o Determining the charge on a polyatomic ion.

A

Deciding how many electrons are involved in a bond.

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

Which of the following statements concerning common alcohols is correct?

o Wood alcohol and Grain alcohol are the same substance.
o Rubbing alcohol is pure Ethyl alcohol.
o Absolute alcohol is pure Isopropanol.
o Ethanol can be produced by fermentation

A

Ethanol can be produced by fermentation

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

Which of the following molecules would exhibit the largest dipole moment?

o CH3CH3
o CH3CH2F
o CH3CH2Cl
o CH3CH2Br

A

CH3CH2F

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

In which of the following classes of organic compounds is an oxygen atom bonded to a hydrogen atom?

o Alcohols
o Amines
o Aldehydes
o All of the above

A

Alcohols

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

Which of the following functional group classifications do not contain oxygen?

o Ether
o Thiol
o Aldehyde
o Ester

A

Thiol

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

Which of the following statement is correct?

o H-bonding decreases solubility in water
o Branching lowers the Inter-molecular Forces of the molecule
o As the length of carbon chain increases, boiling point decreases
o As the length of carbon chain increases, hydrophobic chain decreases

A

Branching lowers the Inter-molecular Forces of the molecule

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

Which of the following statements concerning phenols is incorrect?

o They are generally low-melting solids or oily liquids.
o They easily dissolve in water.
o Phenols can undergo halogenation
o Phenols have acid ionization constants lower than most weak inorganic ac

A

They are generally low-melting solids or oily liquid

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

According to the Bronsted-Lowry theory, a base is a (n)

o Proton donor
o Proton acceptor
o Electron donor
o Electron acceptor

A

Proton acceptor

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

Which of the following has the highest boiling point?

o Hexanol
o Hexanoic acid
o Hexanal
o Hexane

A

Hexanoic acid

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

Which of the following are the classes of organic compounds arranged in increasing boiling point?

o Aldehyde, carboxylic acid, alkane
o Alcohol, carboxylic acid, organic salts
o Aldehyde, ether, alkane
o Alcohol, ketone, carboxylic acid

A

Alcohol, ketone, carboxylic acid

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

As the n in H(CH2)nH decreases, the
melting points _______ and the boiling points __________.

o increase, increase
o increase, decrease
o decrease, increase
o decrease, decrease

A

decrease, decrease

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

Which of the following expression is correct in terms of basicity?

o CH3NHCH3 > CH3NH2
o CH3NH2 > CH3NHCH3
o N(CH3)3 > CH3NHCH3
o CH3NHCH3 < CH3NH2

A

CH3NHCH3 > CH3NH2

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

Molecules of similar sizes with different functional groups will have

o Similar chemical and physical properties.
o Exactly the same chemical and physical properties.
o Different chemical and physical properties.
o Size and functional group are not related

A

Similar chemical and physical properties

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

Alkanes are often called:

o Unsaturated hydrocarbons
o Saturated hydrocarbons
o Carbohydrates
o Saturated Fats

A

Saturated hydrocarbons

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

Which of the following could not be the molecular formula for an alkane molecule?

o C4H10
o CH4
o C5H14
o C24H50

A

C5H14

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

How many carbon atoms are present in the alkane whose IUPAC name is 2,2,4-trimethylpentane?

o Five
o Eight
o Seven
o Nine

A

Eight

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

Which of the following alkenes is paired with an incorrect IUPAC name?

o CH2=CH–CH2–CH3; 1-butene
o CH3–CH=CH–CH3; 2-butene
o CH3–CH2–CH=CH2; 3-butene
o All of the above

A

CH2=CH–CH2–CH3; 1-butene

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

Which of the following is the definition of a pair of enantiomers?

o A pair of structures that aresuperimposable mirror images of one another
o A pair of stereoisomers that are non- superimposable mirror images of one another
o A pair of stereoisomers that are not mirror images of one another
o A pair of stereoisomers that have equal specific rotations

A

A pair of stereoisomers that have equal specific rotations

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

Which of the following is the definition of a pair of diastereomers?

o A pair of structures that are superimposable mirror images of one another
o A pair of stereoisomers that are non- superimposable mirror images of one another
o A pair of stereoisomers that are not mirror images of one another
o A pair of stereoisomers that have equal specific rotations

A

A pair of stereoisomers that are non- superimposable mirror images of one another

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
28
Q

Which of the following correctly describes a molecule that is achiral?

o Non-superimposability of the molecule on its mirror image
o Superimposability of the molecule on its mirror image
o Contains a carbon atom with four different substituents
o Does not have a plane of symmetry

A

Superimposability of the molecule on its mirror image

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
29
Q

The biological importance of enantiomers arises from?

o Biological reactions involve receptor molecules.
o Biological receptors are chiral.
o Biological receptors require a specific enantiomer for reaction.
o All of the above

A

All of the above

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
30
Q

Which of the following structural features is possessed by aldehydes but not ketones?

o At least one hydrogen atom is bonded to the carbonyl carbon atom.
o At least one hydroxyl group is bonded to the carbonyl carbon atom.
o The carbonyl carbon atom is bonded to two other carbon atoms.
o The carbonyl carbon atom is part of a ring structure

A

At least one hydrogen atom is bonded to the carbonyl carbon atom.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
31
Q

What two functional groups are never found at the end of a carbon chain?

o Alcohol and ketone
o Ether and aldehyde
o Alcohol and aldehyde
o Ether and Ketone

A

Ether and ketone

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
32
Q

Which of the following statements
concerning hydrogen bonding is correct?

o Ketone molecules can hydrogen bond to each other.
o Aldehyde molecules can hydrogen bond to each other.
o Both ketone molecules and aldehyde molecules can hydrogen bond to each other.
o Aldehyde molecules cannot hydrogen bond to other aldehyde molecules.

A

Aldehyde molecules cannot hydrogen
bond to other aldehyde molecules

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
33
Q

The functional group present in carboxylic acids is called a:

o Carbonyl group
o Carboxyl group
o Carboxylate group
o Carbohydroxyl group

A

Carboxyl group

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
34
Q

Carboxylic acids may be prepared by oxidation of:

o Ketones
o Secondary alcohols
o Primary alcohols
o Tertiary alcohol

A

Secondary alcohols

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
35
Q

The ester obtained by reacting methanol and ethanoic acid is called:

o Methyl ethane
o Methyl ethanoate
o Ethyl methanoate
o Ethane methanoate

A

Methyl ethanoate

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
36
Q

Which of the following compounds is a constitutional isomer of ethyl ethanoate?

o Methyl methanoate
o Ethyl propanoate
o Butanoic acid
o More than one correct response

A

Butanoic acid

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
37
Q

Hydrogenation involves which of the following?

o Oxidation of alkenes
o Hydration of alkenes
o Reduction of alkenes
o Both oxidation and reduction of alkene

A

Both oxidation and reduction of alkenes

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
38
Q

Carboxylic acids are converted into esters when reacted to:

o Ammonia and acid
o Alcohol and acid
o LiAlH4 and water
o Acid and base

A

Alcohol and acid

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
39
Q

Esters are produced through the reaction of:

o A ketone and an ether
o An alcohol and a carboxylic acid
o A carboxylic acid and an aldehyde
o A ketone and an alcohol

A

An alcohol and a carboxylic acid

40
Q

S1: Atomic mass = mass of protons + mass of neutron.
S2: For a neutral atom, number of proton=number of electron.

o Only the first statement is correct
o Only the second statement is correct
o Both statements are correct
o Neither

A

Only the first statement is correct

41
Q

The particle formed when two or more atoms bond covalently:

o Compound
o Molecule
o Zymogen
o Allotrope
o Isotope

A

Molecule

42
Q

Which of the following statement/s is
correct?

o Elements, but not compounds, are pure substances.
o Compounds, but not elements, are pure substances.
o Both elements and compounds are pure substances.
o Neither elements nor compounds are pure substances

A

Both elements and compounds are pure substances.

43
Q

Which of the following statements about heterogeneous and homogeneous mixtures is correct?

o It is possible to have heterogeneous mixtures in which all the components are liquids.
o A homogeneous mixture contains visibly different parts, or phases.
o All of the phases in a heterogeneous mixture must be in the same state
o No two phases in a heterogeneous mixture can be in the same state.

A

No two phases in a heterogeneous
mixture can be in the same state

44
Q

The most abundant elements in the
universe and the Earth’s crust are, respectively,

o Oxygen & Iron
o Helium & Carbon
o Hydrogen & Helium
o Hydrogen & Oxygen

A

Hydrogen & Oxygen

45
Q

The “mathematical meaning” associated with the metric system prefixes milli, centi, kilo is respectively,

o 10–2, 10–4, and 10–6
o 10–3, 10–6, and 10–9
o NOTA

A

NOTA

46
Q

Which of the following pairings of chemical formulas and “molecular descriptions” is incorrect?

o LiCN and “triatomic”
o N2 and “homoatomic”
o KCl and “heteroatomic”

A

KCl and “heteroatomic

47
Q

The noble gasses are all non-metals and are characterized by having completely filled shells of electrons. In general this makes them very unreactive chemically since it is difficult to add or remove electrons.

o Only the first statement is correct
o Only the second statement is correct
o Both statements are correct
o Neither are correct

A

Both statements are correct

48
Q

Refer to the file

A
49
Q

A tabulation of elements classified into groups/ families with various physical and chemical properties

o Periodic Table
o Elemental List
o Element standard
o Reactivity series

A

Periodic Table

50
Q

Refer to the file

A
51
Q

Refer to the file

A
52
Q

Refer to the file

A
52
Q

Refer to the file

A
53
Q

Which is NOT a phenothiazine?

o Olanzapine
o Clozapine
o Metoclopramide
o Quetiapine
o NOTA

A

NOTA

54
Q

Used in the treatment of isoniazid-resistant tuberculosis.

o Ethionamide
o (+) Ethambutol
o (-) Ethambutol
o Aminosalycylic acid
o PZA

A

(-) Ethambutol

55
Q

Used as a preservative, primarily to retard yeast growth.

o Methylparaben
o Ethylparaben
o Propylparaben
o Butylparaben
o NOT

A

Methylparaben

56
Q

Refer to the file

A
57
Q

Refer to the file

A
58
Q

Gentamicin can be isolated from what microorganism?

o Streptomyces tenebrarius
o Streptomyces natalensis
o Streptomyces licolnensis
o NOTA

A

NOTA

59
Q

Refer to the file

A
59
Q

Refer to the file

A
60
Q

Refer to the file

A
61
Q

Refer to the file

A
62
Q

Refer to the file

A
62
Q

Refer to the file

A
63
Q

Refer to the file

A
64
Q

Refer to the file

A
65
Q

Refer to the file

A
66
Q

Phenoxymethypenicillin is?

o Penicillin N
o Penicillin V
o Penicillin T
o Penicillin G
o Penicillin C

A

Penicillin V

67
Q

All are anti-pseudomonal cephalosporin, EXCEPT:

o Ceftriaxone
o Ceftizoxime
o Ceftazidime
o Cefotaxime
o Cefuroxime

A

Cefuroxime

68
Q

All have hydroxyethylene scaffold central core motif, except:

o Saquinavir
o Tipranivir
o Inidnavir
o Both A and C
o NOT

A

Tipranivir

69
Q

All are 4-aminoquinoline derivatives, EXCEPT:

o Primaquine
o Mefloquine
o Chloroquine
o Hydroxychloroquine
o NOTA

A

Primaquine

70
Q

All are polycyclic antimalarial agents, EXCEPT:

o Quinacrine
o Pyronaridine
o Doxycycline
o Halfantrine
o NOTA

A

NOTA

71
Q

This is a hydrogen in an acid molecule that can be transferred to a base during an acid- base reaction.

o Reaction intermediate
o Percent dissociation
o Ionization constant
o Acidic hydrogen atom

A

Ionization constant

72
Q

The law that expresses the relationship between pressure, volume, temperature of gases in the equation, PV=nRT, where n is equal to the number of moles of gas and R is constant which is the same for gasses that behave ideally is known as:

o Gay-Lussacs Law
o Boyles Law
o Charle’s Law
o Ideal Gas Law

A

Ideal Gas Law

73
Q

Boyle’s law involves which of the following?

o Direct proportion
o A constant volume
o A constant temperature
o AOTA
o NOTA

A

A constant temperature

74
Q

The factors that affect the rate of chemical
reactions include the following, EXCEPT.

 Concentration of reactants
 Nature of reactants
 Temperature
 Nature of reaction
 Surface area

A

Surface area

75
Q

This states that when a system experiences a disturbance (such as concentration, temperature, or pressure changes), it will respond to restore a new equilibrium state

 Le Chatelier’s Principle
 Law of constant proportion
 Aufbau principle
 Henderson-Hasselback Law

A

Le Chatelier’s Principle

76
Q

The following statements are true about the properties of Group IA EXCEPT:

 One valence electron
 Their hydroxides give alkaline solutions.
 In the crystalline state only lithium
regularly form hydrates.
 Alkali metal salts of common inorganic and

A

Their hydroxides give alkaline solutions

76
Q

Which property is shared by both alkali metals and alkaline earth metals?

 Two electrons in the valence shell
 Low electronegativity
 Readily form divalent cations
 Less dense than other metals
 Low electron affinity

A

Low electronegativity

77
Q

Alkaline Earth metals exhibit the following property, EXCEPT:

 Two electrons in the valence shell
 Low electronegativity
 Readily form divalent cations
 Less dense than other metals
 Low electron affinity

A

Low electronegativity

78
Q

This is the most active of metallic elements:

 Alkali metals
 Oxidizing agents
 Base metals
 Buffer system

A

Alkali metals

79
Q

The halogens exhibit different physical properties from each other but do share chemical properties, which include:

 Average electronegativity
 Metallic
 Most reactive
 Six valence electrons
 All of them

A

All of them

80
Q

Group of Precipitant of the silver group

 Acetic acid
 Hydrochloric acid
 Sulphuric acid
 Benzoic Acid

A

Hydrochloric acid

81
Q

The following are members of the soluble group EXCEPT:

 Sodium
 Aluminum
 Ammonia
 Potassium
 NOTA

A

Aluminum

82
Q

Salts of these alkaline metals are used as sedative depressant in psychiatry:

 Lithium
 Iridium
 Potassium
 Sodium

A

Lithium

83
Q

Group 8 of the periodic table:

 Consists of 8 electrons in its outermost level
 Consists of 10 electrons in its outermost energy level
 Has four electrons in its p subshell
 All are correct
 All are incorrect

A

All are correct

84
Q

Group 2 in the periodic table includes the
following, EXCEPT:

Be
 Ba
 Sr
 Mg
 Cu

A

Cu

85
Q

Group 4 elements include/s:

 Zn
 Zr
 Pb
 S
 AOTA

A

Zr

86
Q

Another name for Group6A:

 Chalcogens
 Cation Group
 Halogens
 Clarogens
 NOTA

A

Chalcogens

87
Q

Which of the following is a triprotic acid?

 Sulfuric acid
 Nitric acid
 Phosphoric acid
 Carbonic acid
 AOTA

A

AOTA

88
Q

Which of the following does not describe an acidic solution?

 The pH is less than 7.0
 The [OH–] is greater than 1.0 X 10–7
 The [H3O+] is greater than the [OH–]
 The [OH–] is 6.0 10–10

A

The [H3O+] is greater than the [OH–]

89
Q

The pH of a buffered solution

 Always equals 7.0
 May be acidic or basic depending on the buffer present
 Changes drastically when a small amount of acid is added
 No correct response
 All are correct

A

All are correct

90
Q

Which of the following is a strong base?

 Caustic soda
 Muriatic acid
 Potash
 AOTA
 NOTA

A

Potash

91
Q

Which of the following is the universal dehydrating agent?

 Hydrochloric acid
 Nitric acid
 Hydrobromic acid
 Sulfuric acid

A

Sulfuric acid

92
Q

The radiopharmaceutical which is used as diagnostic aid to determine blood plasma volume and cardiac output:

 Chlormerodrin Hg197
 Sodium chromate 51
 I131 Serum Albumin (Human)
 Gold 198

A

I131 Serum Albumin (Human)

93
Q

This is used for kidney imaging or
determining renal function:

 Technetium 99m phytate
 Technetium 99HIDA
 Technetium Heptagluconate
 Technetium 99 Etidronate

A

Technetium Heptagluconate

94
Q

Refer to the File

A

PreBoards (20 decks)

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