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OCHEM 2 LAB FINAL UTA 2026
ACTUAL QUESTIONS WITH VERIFIED
ANSWERS.
The Diels-Alder Rxn has what type of transition state? - correct
answer-Activated Complex
What are the three steps in a radical mechanism? - correct
answer-1. Initiation
2. Propagation
3. Termination
What is the general formula of a Grignard Reagent? - correct
answer-R-Mg-X
1. Water- will get protonated to make OHMgX
2. Carbon Dioxide- carboxylate
3. Aldehyde- Secondary Alcohol
4. Ester or Ketone- Tertiary alcohol - correct answer-What you
would get if you mix a Grignard Reagent and the following
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Why did we wash the styrene with NaOH during
polymerization? - correct answer-To remove the radical
scavenger
What is the solvent in the polymerization experiment? - correct
answer-Dimethyl benzene or Xylene
Where is Nylon produced during polymerization? - correct
answer-On the interface surface
What company produces Nylon? - correct answer-Dupont
Why did the dienophile attach to the center of the benzene ring
in anthracene during the Diels-Alder? - correct answer-It was
stabilized by the energy gap/ didn't lose too much energy
What was the nucleophile used during the nitration experiment?
- correct answer-Methyl benzoate
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What was the electrophile used during the nitration
experiment? - correct answer-Nitronium ion
Why did we add H2SO4 in the Grignard Experiment? - correct
answer-To protonate the alkoxide to form the alcohol
What did we reflux the polystyrene with in the polymerization
experiment? - correct answer-Xylene
Which acid is more concentrated in the nitration experiment?
(HNO3 or H2SO4) - correct answer-Nitric acid (16 M) vs
H2SO4 (3 M)
H2SO4 is more concentrated; Nitric acid is protonated
Which tests would you use to test for an aldehyde or ketone? -
correct answer-2,4-Dinitrophenylhydrazine (tells if C=O
present)
Chromic acid oxidation test (+ aldehyde/ - ketone)
Potassium Permanganate Test (+ aldehyde/ - ketone)
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Which tests would you use to test for a phenol? - correct
answer-Bromine in Water Test
Ferric-chloride Pyridine Test
What tests would you use to test for an amine? - correct
answer-Nitrous acid test
Hinsberg test
What tests would you use to test for a halide? - correct answer-
Silver Nitrate Test (SN1)
Sodium Iodide in Acetone Test (SN2)
Beilstein Test
What test would you use to test for an alcohol? - correct
answer-Chromic Acid Oxidation Test (+ primary or secondary
OH/ - tertiary OH)
What test would you use to test for a nitro group? - correct
answer-Ferrous Hydroxide Test
OCHEM 2 LAB FINAL UTA 2026
ACTUAL QUESTIONS WITH VERIFIED
ANSWERS.
The Diels-Alder Rxn has what type of transition state? - correct
answer-Activated Complex
What are the three steps in a radical mechanism? - correct
answer-1. Initiation
2. Propagation
3. Termination
What is the general formula of a Grignard Reagent? - correct
answer-R-Mg-X
1. Water- will get protonated to make OHMgX
2. Carbon Dioxide- carboxylate
3. Aldehyde- Secondary Alcohol
4. Ester or Ketone- Tertiary alcohol - correct answer-What you
would get if you mix a Grignard Reagent and the following
, Page | 2
Why did we wash the styrene with NaOH during
polymerization? - correct answer-To remove the radical
scavenger
What is the solvent in the polymerization experiment? - correct
answer-Dimethyl benzene or Xylene
Where is Nylon produced during polymerization? - correct
answer-On the interface surface
What company produces Nylon? - correct answer-Dupont
Why did the dienophile attach to the center of the benzene ring
in anthracene during the Diels-Alder? - correct answer-It was
stabilized by the energy gap/ didn't lose too much energy
What was the nucleophile used during the nitration experiment?
- correct answer-Methyl benzoate
, Page | 3
What was the electrophile used during the nitration
experiment? - correct answer-Nitronium ion
Why did we add H2SO4 in the Grignard Experiment? - correct
answer-To protonate the alkoxide to form the alcohol
What did we reflux the polystyrene with in the polymerization
experiment? - correct answer-Xylene
Which acid is more concentrated in the nitration experiment?
(HNO3 or H2SO4) - correct answer-Nitric acid (16 M) vs
H2SO4 (3 M)
H2SO4 is more concentrated; Nitric acid is protonated
Which tests would you use to test for an aldehyde or ketone? -
correct answer-2,4-Dinitrophenylhydrazine (tells if C=O
present)
Chromic acid oxidation test (+ aldehyde/ - ketone)
Potassium Permanganate Test (+ aldehyde/ - ketone)
, Page | 4
Which tests would you use to test for a phenol? - correct
answer-Bromine in Water Test
Ferric-chloride Pyridine Test
What tests would you use to test for an amine? - correct
answer-Nitrous acid test
Hinsberg test
What tests would you use to test for a halide? - correct answer-
Silver Nitrate Test (SN1)
Sodium Iodide in Acetone Test (SN2)
Beilstein Test
What test would you use to test for an alcohol? - correct
answer-Chromic Acid Oxidation Test (+ primary or secondary
OH/ - tertiary OH)
What test would you use to test for a nitro group? - correct
answer-Ferrous Hydroxide Test
