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Organic Chemistry > Midterm Lab > Flashcards

Midterm Lab Flashcards

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1
Q

IUPAC name of acetylene

A

ethyne

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2
Q

In acetylene, H-C=C-H bond angles is

A

180 degrees

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3
Q

the chemicals used in preparation of acetylene

A

CaC2

H2O

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4
Q

2 products formed in the preparation of acetylene

A

Ca(OH)2

C2H2

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5
Q

Uses of Calcium Carbide

A 
manufacture of acetylene gas
generation of acetylene in carbide lamps
artificial ripening of fruits
manufacture of chemicals for fertilizer
steelmaking
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6
Q

components of calcium carbide

A 
CaC2
CaO
Ca3P2
CaS
Ca3N2
SiC
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7
Q

properties of acetylene

A 
colorless, odorless, gas
garlic odor if not pure
lighter than air; somewhat poisonous
slightly soluble in water; highly soluble in alcohol and acetone
form explosive mixtures with air
boiling point -84 degrees celsius
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8
Q

uses of sodium metal

A

manufacture of sodamide and esters
used to modify alloys
descale metals
lighting

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9
Q

nature of flame produced when acetylene burns

A

luminous

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10
Q

color of reaction of bromine water and acetylene

A

colorless

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11
Q

uses of acetylene

A

portable lighting
fuel in cutting and welding
raw material for many organic compounds and plastics

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12
Q

product of acetylene and sodium metal

A

sodium acetylide

NaC2H

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13
Q

chemical formula of ethyne/acetylene

A

C2H2

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14
Q

acidity of acetylene

A

highly acidic

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15
Q

gas evolved when sodium metal was added to acetylene

A

H2

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16
Q

final product of reaction of bromine and c2h2

A

1,2 - dibromoethene

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17
Q

chemical formula of chloroform and iodoform

A

CHCl3

CHI3

18
Q

IUPAC of chloroform and iodoform

A

trichloromethane

triiodomethane

19
Q

Common name of chloroform and iodoform

A

methyl trichloride

methyl triiodide

20
Q

Color of chloroform and iodoform

A

colorless (CHCl3)

brown (CHI3)

21
Q

Odor of chloroform and iodoform

A

sweetish, ethereal (CHCl3)

unpleasant, medicinal (CHI3)

22
Q

Solubility of chloroform and iodoform with water

A

insoluble (Both)

23
Q

Solubility of chloroform and iodoform with alcohol

A

soluble (both)

24
Q

Solubility of chloroform and iodoform with ether

A

soluble (both)

25
Q

flammability of chloroform and iodoform

A

non-flammable (both)

26
Q

flame color of chloroform and iodoform

A

green (both)

27
Q

chlorides of chloroform and iodoform

A

AgCl (no ppt, 2 layers formed) - CHCl3

no reaction - CHI3

28
Q

Uses of chloroform

A

anesthetic and sedative
solvent for fats
dry cleaning

29
Q

uses of iodoform

A

clean wounds
antiseptic
manufacture of pharmaceuticals

30
Q

other name of methanol

A

wood alcohol

31
Q

other name of ethanol

A

grain alcohol

32
Q

chemical formula of methanol and ethanol

A

CH3OH (methanol)

C2H5OH (ethanol)

33
Q

Common Name of methanol and ethanol

A

methyl alcohol

ethyl alcohol

34
Q

Color of methanol and ethanol

A

colorless (both)

35
Q

odor of methanol and ethanol

A

unpleasant (both)

36
Q

Solubility of methanol and ethanol in water

A

soluble (both)

37
Q

Solubility of methanol and ethanol in coconut oil

A

insoluble (both)

38
Q

Solubility of methanol and ethanol in camphor oil

A 
slightly soluble (Ch3OH)
soluble (C2H5OH)
39
Q

Solubility of methanol and ethanol in sugar

A

insoluble (both)

40
Q

flammability of methanol and ethanol

A

flammable (non-luminous) - methanol

flammable (luminous) - ethanol

Organic Chemistry (3 decks)

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