EFN103G - 9. kafli
Authored by Benjamín Ragnar Sveinbjörnsson
Chemistry
University
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10 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Hvert er IUPAC nafn eftirfarandi efnis?
(S)-3-chloro-1-hexanone
(R)-3-chlorocyclohexanone
(S)-3-chlorocyclohexanone
(S)-1-chloro-3-cyclohexanone
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
LiAlH4 getur ekki verið notað til að breyta karboxýlsýrum í aldehýð af því að...
LiAlH4 er ekki nógu hvarfgjarnt
RCOOH er afoxað niður í RCH2OH
RCOOH er breytt yfir í RCOOLi
RCOOH er afoxað niður í RCH3
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Hvert eftirfarandi efna er acetal?
I
II
III
IV
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Ef að alkóhól er hvarfað við aldehýð/ketón í basískri lausn, hvaða myndefni fáum við?
Acetal
Hemiacetal
gem-díól
alkóhól
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Ef að alkóhól er hvarfað við aldehýð/ketón í súrri lausn, hvaða myndefni fáum við þá?
Acetal
Hemiacetal
Gem-díól
Alkóhól
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which of the reagents listed below would efficiently accomplish the following transformation?
KMnO4(aq, basi)
Br2
H2, Pt
Jones ( CrO3/H2SO4 )
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which of the reagents listed below would efficiently accomplish the following transformation?
NaBH4,H2O
i) LiAlH4; ii) H2O
H2, Pd
All of these choices.
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