Lab Techniques- DAT Orgo

Question 1

Br2/CCl4

Test for:
Negative:
Positive:

Answer 1

Br2/CCl4

Test for: Alkenes & Alkynes
Negative: BROWN
Positive: COLORLESS

Question 2

KMnO4

Baeyer Test
Test for:
Negative:
Positive:

Answer 2

KMnO4
Baeyer Test

Test for: Alkene, Alkyne, Aldehyde, Phenol
Negative: Purple
Positive: BROWN

Question 3

Acyl Chloride test

Test for:
Negative:
Positive:

Answer 3

Acyl Chloride test

Test for: Alcohols, 1 and 2 Amines
Negative: NR
Positive: Evolution of Heat and HCL gas/ precipitate

Question 4

Lucas Test
ZnCl2

Test for:
Negative:
Positive:

Answer 4

Lucas Test
ZnCl2

Test for: 2 and 3 Alchols
Negative: NR 
Positive: Cloudy Second Layer or Emulsion
            2-3 min = 3 OH
            5-10 min = 2 OH

Question 5

Jones Test
Cr2O7^-2

Test for:
Negative:
Positive:

Answer 5

Jones Test
Cr2O7^-2

Test for: 1 and 2 OH and Aldehydes
Negative: Orange
Positive: Blue/Green

Question 6

2,4 DNP

Test for:
Negative:
Positive:

Answer 6

2,4 DNP

Test for: Aldehydes + Ketones
Negative: NR
Positive: Precipitate (solid)

Question 7

Tollen’s Test
Ag(NO3)2+

Test for:
Negative:
Positive:

Answer 7

Tollen’s Test
Ag(NO3)2+

Test for: Aldehydes
Negative: NR
Positive: Silver Mirror

Question 8

Sodium Bicarbonate
NaHCO3

Test for:
Negative:
Positive:

Answer 8

Sodium Bicarbonate
NaHCO3

Test for: Carboylic Acids
Negative: NR
Positive: Evolution of CO2 gas

Question 9

What does NMR determine?

Answer 9

NMR determines the structure of a compound

Question 10

What does IR determine?

Answer 10

Recognizes functional groups

Question 11

Reducing Sugars (Benedict’s Test)

All aldoses and most ketoses, and hemi-acetals/hemi-ketals are _____.

All acetals/ketals are _________.

Answer 11

Reducing Sugars (Benedict’s Test)

All aldoses and most ketoses, and hemi-acetals/hemi-ketals are REDUCING

All acetals/ketals are NON-REDUCING SUGARS

Question 12

Monosaccharides include: (3 items)

Answer 12

Glucoes, Fructose, Galatose

Question 13

Oligosaccharides include:

Answer 13

Sucrose( Glu + Fru)

Lactose(Glu + Gal)

Question 14

Polysaccharides include:

Answer 14

Starch, glycogen, cellulose, chitlin, etc.

Question 15

Atoms next to “O” or “N” would be more to the left(_____),

Then those next to O=C is (_________)

Answer 15

1. DOWNFIELD

2. UPFIELD

Question 16

MITOSIS

              #Chromosomes         #Chromatids P                                                          M                         A                                                         T                                                        

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Answer 16

MITOSIS

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Question 17

MEIOSIS I

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Answer 17

MEIOSIS I

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Question 18

MEIOSIS II

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Answer 18

MEIOSIS II

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