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EFN103G - 9. kafli

Authored by Benjamín Ragnar Sveinbjörnsson

Chemistry

University

Used 7+ times

EFN103G - 9. kafli
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10 questions

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1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Media Image

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

Media Image

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

Media Image

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

Media Image

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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