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Refresher-ARC- Concepts > DAY 1 > Flashcards

DAY 1 Flashcards

1
Q

The element that is in Group 14 and the fourth period is

A

Germanium

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2
Q

How many metals, metalloids, and nonmetals are there in the third perios of the Periodic Table?

A

3,1,4

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3
Q

Give the technical names of Sc3+, Ti2+, and Sr2+

A

Scandium (III) ion
Titanium (II) ion
Strontium (II) ion

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4
Q

Number of neutrons of the radioactive isotope C14

A

8

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5
Q

11-tetradecenyl acetate

A

C16H30O2

MW= 254 g/mol

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6
Q

Rubidium 84

A

Half-life: 33 days

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7
Q

Tritium

A

Half-life: 12.3 years

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8
Q

Americium-241

A

Half-life: 432 years

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9
Q

Uranium 238 and Lead 206

A

Half-life: 4.52x10^9 years

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10
Q

Alar

A

C6H12N2O3

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11
Q

Geraniol

A

C10H18O

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12
Q

Number of double bonds in geraniol

A

2

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13
Q

Differences in structure between a saturated hydrocarbon from an unsaturated hydrocarbon.

A

A saturated hydrocarbon contains only carbon-carbon single bonds, while an unsaturated hydrocarbon contains one or more carbon-carbon double or triple bonds.

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14
Q

Determine whether TRUE or FALSE about the constitutional isomer.

A. They have the same molecular formula
B. They have the same molecular weight
C. They have the same connectivity to their atoms
D. They have the same physical properties

A

T, T, F, F

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15
Q

Method used by Friedrich Wöhler to break the vital force theory in nature

A

Heating ammonium cyanate to form urea

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16
Q

Common contaminant in the BTEx process

A

Sulfur

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17
Q

Dodecane

A. Soluble in water
B. Soluble in hexane
C. Combustible
D. Solid, liquid, oe gas in atmospheric condition
E. Denser than water

A

No, Yes, Yes, Liquid, No

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18
Q

Primary application of ethylene

A

Used as a plant hormone for ripening of fruits

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19
Q

Lecithin is also known as

A

Phosphatidylcholine

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20
Q

From what plant is capsaicin extracted

A

Capsicum

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21
Q

Capsaicin

A

C18H27NO3

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22
Q

Formed by the reaction of malonic acid and urea with a catalyst, as discoved by Adolf von Baeyer?

A

Barbituric acid

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23
Q

Common structural characteristics of citric acid and malic acid

A

Both hydroxy acids

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24
Q

Determine which of the following will float or sink in water:

Balsa wood
Ethylene glycol
Table salt
Ethanol

A

Float, sink, sink, float

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25
Q

Define salt in terms of acids and bases.

A

A salt is a compound (other than water) produced by the reaction of acid and a base.

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26
Q

Determine which of the following occurrences tells us what happens when Le Chatelier’s principle is applied whether these are TRUE or FALSE

A.) The addition of a component causes the equilibrium to shift to the opposite side
B.) The removal of the component causes the equilibrium to the side from which the component is removed
C.) Increasing the temperature drives an exothermic equilibrium to the side of the reactants, an endothermic equilibrium to the side of the product.
D.) The addition of a catalyst has NO effect on the position of the equilibrium.

A

T, T, T, T

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27
Q

When a can of soda is opened and CO2 is released to the atmosphere, what is the resultant pH of the soda?

A

Increases

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28
Q

If the entropy of a system decreases, the entropy of its surroundings

A

Must always increase

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29
Q

Dominant composition of acid rain

A

Nitric acid and sulfuric acid

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30
Q

Radioactive solid nuclear wastes are disposed off by

A

Underground burial in concrete containers

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31
Q

Above stratosphere, the concentration of ozone and other gases is low, and the temperature decreases with increasing altitude.

A

Mesosphere

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32
Q

Part of a molecule where most of its chemical reactions occur

A

Functional group

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33
Q

Which of the following molecule is unsaturated?

A. C3H8 (propane)
B.C5H10 (1-pentene)
C. CH3OH (methanol)
D. CH4 (methane)

A

B. C5H10 (1-pentene)

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34
Q

Which of the following alkanes is gas at room temp?

A. Octane
B. Propane
C. Eicosane
D. Undecane

A

B. Propane

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35
Q

When ethyl bromide is treated with sodium in dry ether, the product is

A

Butane

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36
Q

The ff reagents will produce an alkane from an alkyl halide EXCEPT

A. Zn/H+
B. alcoholic KOH
C. Na/dry ether
D. All of these

A

B. alcoholic KOH

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37
Q

When 1-bromo-2-methylcyclobutane is treated with alcoholic KOH, the dominant product is

A

1-methylcyclobutene

38
Q

2-methylpropene can be obtained from

A

2-methyl-2-propanol

39
Q

Alkenes are commonly prepared via elimination reaction, which of the following is NOT an elimination reaction?

A. Dehydration of alcohol
B. Dehalogenation of vicinal dihalide
C. Dehydrohalogenation of alkyl halide
D. Hydrogenation of alkynes

A

D. Hydrogenation of alkynes

40
Q

The following reagents will yield an alkyl halide from an alkene EXCEPT

A. Br2/uv light
B. HCl
C. Br2 in CCl4
D. HBr/peroxide

A

A. Br2/uv light

41
Q

Addition of HBr to alkynes results in the formation of

A

geminal dihalide

42
Q

Hydrogenation of alkenes in the presence of a poisoned palladium catalyst produces

A

Alkane

43
Q

When 2-butyne undergoes ozonolysis, the main product is

A

Acetic acid

44
Q

In the hydration of alkynes, the enol formed is found to transform into a ketone. This form of isomerism is known as

A

Keto-enol tautomerism

45
Q

All of the following are ortho and para directing substituents EXCEPT

A. -OH (o,p)
B. -OR (o,p)
C. -F (o,p)
D. -NO2 (m)

A

D. -NO2

46
Q

How many isomers does xylene have

A

3

47
Q

Which of the following is a ketone?

A. CH3COCH3
B. CH3OCH2CH3
C. (CH3)2CHOH
D. CH3CHO

A

A. CH3COCH3

48
Q

Which of the following processes will yield an aldehyde?

A. Oxidation of alcohols using KMnO4 in basic medium
B. Ozonolysis of alkenes
C. Oxidation of alcohols using chromic acid
D. Ozonolysis of alkynes

A

B. Ozonolysis of alkenes

49
Q

Hydrogenation of one mole of allene (Ch2=C=CH2) with 2 moles of H2 in the presence of Lindlar catalyst yields

A

Propane

50
Q

No carbonyl group is found in

A. Ether
B. Ketone
C. Aldehyde
D. Carboxylic acid

A

A. Ether

51
Q

Which of the following is not an alipatic hydrocarbon?

A. n-octane
B. propylene
C. n-tridecane
D. toluene

A

D. Toluene

52
Q

The study of carbons and its compounds

A

Organic chemistry

53
Q

Same chemical formula but different in geometric/ structural orientation

A

Isomerism

54
Q

It is composed of amino acids

A

Proteins

55
Q

2-methyl-2-butene undergoes hydrochlorination in the presence of benzoyl peroxide to form

A

2-chloro-3-methylbutane

56
Q

Which of the following straight-chain alkanes can be conveniently prepared by Wurtz reaction?

A. Heptadecane
B. Nonane
C. Icosane
D. None of the above

A

C. Icosane

57
Q

In nucleophilic addition reactions of alkenes with HZ in which the nucleophile Z attaches to more alkyl-substituted carbon and the H attaches to the carbon that already has the greater number of H atoms, the rule being followed by the reaction is

A

Markovnikov’s rule

58
Q

Dehydrochlorination of 2-chloro-3-methylpentane with alcoholic KOH yields

A

3-methyl-2-pentene

59
Q

Friedel-Crafts acylation of benzene with acetyle chloride in AlCl3 yields

A

Acetophenone

60
Q

In the Grignard synthesis of an alkane, using sec-butyl bromide, which alkane will be produced?

A

n-butane

61
Q

Sulfonation of toluene yields to

A

2-methylbenzenesulfonic acid

62
Q

Which of the following contains sp-hybridized carbon?

A. C4H8
B. C3H6
C. C5H8
D. C6H12

A

C. C5H8

63
Q

Starting with 2-methyl-2-butene, which process must be used to produce a secondary alcohol?

A

Hydroboration-oxidation

64
Q

Vinylbenzene is also known as

A

Styrene

65
Q

Which of the following carbonyl compounds produce a secondary alcohol with LiAlH4?

A. Aldehyde
B. Ketone
C. Ester
D. Carboxylic acid

A

B. Ketone

66
Q

Addition of methyl magnesium bromide to acetaldehyde produces

A

2-propanol

67
Q

Oxidation of isopropyl alcohol with KMnO4 will yield

A

Acetone

68
Q

Which will undergo bimolecular nucleophilic substitution?

A. 2-methyl-2-propanol
B. 1-propanol
C. 2-propanol
D. All of these

A

B. 1-propanol

69
Q

In Williamson synthesis of methyl isopropyl ether, the alcohol used is

A

Isopropyl alcohol

70
Q

Acid-catalyzed ring opening of an epoxide will result in the formation of

A

Dihydric alcohol

71
Q

Hydrocarbon derivatives used as a main ingredient in automobile antifreeze

A

Ethylene glycol

72
Q

The following reagents will give an alkyl halide from alcohol except

A. NaCl
B. PBr3
C. PCl3
D. SOCl2

A

A. NaCl

73
Q

Which of the following is an aldehyde?

A. CH3COCH3
B. (CH3)2CHOH
C. CH3OCH2CH3
D. CH3CHO

A

D. CH3CHO

74
Q

A tertiary alcohol is produced using Grignard Reagent using

A

Ketone

75
Q

Carbonyl compounds can be obtained by reduction using the following except

A. Ester
B. Acyl chloride
C. Nitrile
D. Amide

A

C. Nitrile

76
Q

Addition of hydrazine to carbonyl compounds produces

A

Hydrazone

77
Q

Reduction of alkyl phenyl ketones to aromatic hydrocarbons done by Wolf-Kishner Reduction uses

A

NH2NH2,KOH (hydrazine)

78
Q

Hexanedionic acid is also known as

A

Adipic acid

79
Q

Reaction of alcohol and carboxylic acid is known as

A

Esterification

80
Q

Addition of an alcohol to acyl halides produces

A

Ester

81
Q

An unknown ester was hydrolyzed with water and acid to produce an acud, X and alcohol, Y. Oxidation of the alcohol with hot KMnO4 yielded acid X. Oxidation of the alcohol produced acetaldehyde. Name the ester.

A

Ethyl ethanoate

82
Q

When an ethyl acetate is reduced by LiAlH4, the product is

A

Ethanol

83
Q

Cyclic esters are known as

A

Lactones

84
Q

The scent of banana is due to the ester

A

i-pentyl acetate

85
Q

No carbonyl group is found in

A. Aldehyde
B. Ketone
C. Ester
D. Epoxide

A

D. Epoxide

86
Q

OH groups bonded to vinylic, sp^2-hybridized carbons are called

A

Enol

87
Q

Butanoic acid is also known as

A

Rancid butter

88
Q

Carboxylic acids are reduced by lithium aluminum hydride to the corresponding

A

Primary alcohols

89
Q

It is a solvent that is a cyclic ether

A

Tetrahydrofuran

90
Q

The reaction of alcohols with Ag2O directly with alkyl halide forms ether in

A

One step

Refresher-ARC- Concepts (3 decks)

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