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Organic Chemistry > Lab > Flashcards

Lab Flashcards

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1
Q

Two substances used for charring

A

egg albumin

sugar

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2
Q

Two substances used for non-charring

A

Naphthalene

ethyl alcohol

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3
Q

The black substance formed after heating sugar

A

Carbon

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4
Q

What was deposited at the side of the test tube when egg albumin was heated?

A

moisture

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5
Q

The end product for the test of sulfur

A

PbS

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6
Q

color of end product of sulfur

A

black precipitate

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7
Q

The gas evolved after heating egg albumin and soda lime

A

ammonia NH3

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8
Q

Two acids used for the test of Phosphorus

A

HNO3

H2SO4

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9
Q

The end product for the test of phosphorus

A

ammonium phosphate

(NH4)3PO4

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10
Q

Color of the end product of test for phosphorus

A

yellow precipitate

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11
Q

Two halogens used for the test of halogens

A

Cl

I

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12
Q

The process involved when naphthalene was heated

A

sublimation

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13
Q

The process involved when ethyl alcohol was heated

A

evaporation

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14
Q

Color of the flame for the test of halogens

A

green

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15
Q

Two products formed for complete combustion

A

CO2

H2O

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16
Q

Composition of organic compounds

A

CHON halogens

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17
Q

The reaction of the red litmus paper when egg albumin and soda lime was heated

A

red turned blue

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18
Q

substances used in test for nitrogen

A

egg albumin

soda lime

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19
Q

substances used in sulfur test

A

egg albumin
NaOH
Lead Acetate

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20
Q

Two substances used in flammability test

A

ethyl alcohol

NaOH

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21
Q

Two solutes used in solubility test

A

Naphthalene

NaCl

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22
Q

Two solvents used in solubility test

A

ether

H2O

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23
Q

Two products formed in complete combustion of ethyl alcohol

A

CO2

H2O

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24
Q

Chemical formula of ethyl alcohol

A

C2H5OH

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25
Q

Chemical formula of Naphthalene

A

C10H8

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26
Q

Properties of Methane

A 
colorless, odorless, tasteless gas
lighter than air
non polar
non-toxic
flammable
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27
Q

MP of Methane

A

-182.5 degrees celsius

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28
Q

shape of Methane

A

tetrahedral

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29
Q

is a product of decomposition of organic matter and of the carbonization of coal

A

Methane

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30
Q

used as a fuel and a starting material in chemical synthesis

A

Methane

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31
Q

simplest alkane

A

Methane

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32
Q

greenhouse gas associated with global warming

A

Methane

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33
Q

alternative energy source

A

Methane

34
Q

component of natural gas and also created when animals or municipal waste decomposes

A

Methane

35
Q

___% Ch4 mixed with air is flammable

A

1-8

36
Q

The____ the liquid alkanes are highly flammable

A

lighter

37
Q

Carbon 5 below

A

flammable

38
Q

MF sodium acetate

A

CH3COONa

39
Q

reaction of preparation of methan

A

CH3COONa +NaOh/CaO -> CH4 + Na2CO3

40
Q

ratio of soda lime and sodium acetate

A

1:3 (5g sodium acetate, 15g soda lime)

41
Q

C_ - down insoluble in water

A

5

42
Q

method in collecting CH4 gas

A

water displacement

43
Q

solubility of methane in water

A

1.013 bar or 2 degrees Celsius

44
Q

water is

A

polar

45
Q

Water and Methane at room temperature are

A

insoluble

46
Q

2 halogens used in reaction with methane

A

Iodine

Bromine

47
Q

color of Iodine

A

brown

48
Q

color of Bromine

A

yellow

49
Q

most reactive with CH4

A

Fluorine

50
Q

controllable reaction with CH4

A

Chlorine

51
Q

less reactive than F

A

Bromine

52
Q

does not react

A

Iodine

53
Q

product of bromine and methan

A

CH3Br

bromomethane

54
Q

color of solution after bromine is added to methane

A

light yellow

55
Q

reaction of bromine and methane

A

substitution reaction

CH4 + Br2 -> CH3Br + HBr

56
Q

color of KMnO4

A

purple

57
Q

reaction of KMnO4 to methane

A

no reaction

58
Q

role of KMnO4

A

oxidizing agent

59
Q

Reaction of Alkanes and Alkenes to oxidizing agent

A

Alkanes - no reaction

Alkenes - reaction

60
Q

color of the flame produced when the ignited splinter was placed on the tube containing methane gas

A

blue (non-luminous)

61
Q

Chemical Formula of ethylene

A

C2H4

62
Q

Two substances used in the laboratory preparation of ethylene

A

Ethyl alcohol

H2SO4

63
Q

The method used to prepare ethylene in the laboratory

A

water displacement

64
Q

IUPAC Name of ethylene

A

ethene

65
Q

Two halogens used in experiment of ethylene

A

I

Br

66
Q

The role of KMnO4 in the reaction of halogens

A

oxidizing agent

67
Q

The product formed when ethylene was added with KMnO4

A

1,2 ethandiol or ethylene glycol

68
Q

Two products formed in the laboratory preparation of ethylene

A

C2H4

H2O

69
Q

What is the dehydrating agent used in the preparation of ethylene?

A

H2SO4

70
Q

The product formed in the reaction of C2H4 and Br2

A

Br-CH2 - CH2-Br

71
Q

The name of the product of Br2 and C2H4

A

1,2 dibromoethane

72
Q

Color of precipitate when ethylene was added with lime water

A

white (cloudy white)

73
Q

The product formed in the reaction of C2H4 and I2

A

I - CH2 - CH2 - I

74
Q

The name of the product for I2 and C2H4

A

1,2 diiodoethane

75
Q

The original color of KMnO4

A

purple

76
Q

The original color of iodine

A

brown

77
Q

The original color of bromine

A

yellow

78
Q

Uses of Ethylene

A

manufacture of plastics
manufacture of organic compounds like ethyl alcohol and ethylene glycol
used in the artificial ripening of fruits like banana, mango, etc

79
Q

product of Combustion of ethene

A

CaCo3 + H2O

80
Q

properties of ethene

A

colorless
odorless (not pure) sweetish (pure)
insoluble
flammable

Organic Chemistry (3 decks)

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