Alcadiene Flashcards

1
Q

HC cu formula C4H6

A

8 structuri

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2
Q

Hexadiene cu catena iniara

A

6

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3
Q

ce alcadiene au 3 stereoizomeri

A

cele simetrice

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4
Q

izomerie

A

de fct, de cat, optica, poz, geom

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5
Q

dehidrogenarea catalitica a alcanilor cond

A

Fe2O3, Cr2O3, t

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6
Q

Metoda Lebedev definitie

A

r de deshidratare intramoleculara si dehidrogenare intermoleculara

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7
Q

Lebedev cond

A

Zno, 400

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8
Q

Deshidratarea intramoleculara a diolilor cond

A

H3PO4, 180/250C

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9
Q

dehidrohalogenarea compusilor dihalogenati cond

A

hidroxizi alcalini, sol alcoolice, t

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10
Q

Stare de agregare alcadiene

A

gaz, lichid

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11
Q

pct de fierbere fata de alcani

A

mai scazute

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12
Q

solubilitate

A

insolubile in apa, solubile in comp organici

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13
Q

Reactia specifica alcadienelor

A

aditia

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14
Q

Aditia halogenilor

A

CCl4

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15
Q

procent aditie 1,4 Cl

A

50%

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16
Q

procent aditie 1,4 Br

A

90%

17
Q

Ce fel de molecule formeaza polimerizarea

A

macromolecule filiforme

18
Q

Aditiile 1,2 la polimerizare

A

nu au importanta industriala

19
Q

Cauciucul natural forma

A

cis poliizopren

20
Q

Gutaperca

A

trans

21
Q

Unde se gaseste gutaperca

A

Coaja si frunzele de Palaquium

22
Q

Proprietati gutaperca

A

sfaramicioasa, lipsita de elasticitate

23
Q

Buna N nume alternativ

A

S.K.N

24
Q

Buna N compozitie

A

butadiena, acrilonitril

25
Q

Buna S nume alternativ

A

Carom 35

26
Q

Buna S compozitie

A

Stiren, butadiena

27
Q

Buna SS nume alternativ

A

Carom 1500

28
Q

Buna SS compozitie

A

Metilstiren, butadiena

29
Q

oxidare cu bayer 1:1

A

aditie 1,4

30
Q

exces oxidant

A

alcool polihidroxilic saturat

31
Q

ce face acidul oxalic la oxidare

A

2 co2+ H2O

32
Q

Acid piruvic den alternative

A

ac oxopropanoic, ac cetopropionic

33
Q

de unde se obt acidul piruvic

A

oxidarea izobutadienei