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Questions and Answers
What color change would indicate a positive phenol test using pH paper?
What color change would indicate a positive phenol test using pH paper?
- Red to blue
- Yellow to blue
- Blue to red (correct)
- Blue to green
What color change would signify a positive phenol test using Ferric Chloride?
What color change would signify a positive phenol test using Ferric Chloride?
- Orange to black
- Green to red
- Pale yellow to purple (correct)
- Clear to blue
Which test would confirm the presence of Methyl Ketone?
Which test would confirm the presence of Methyl Ketone?
- Ferric Chloride Test - Blue to red
- Tollen’s Test (AgNH3, NaOH) - Silver mirror
- Iodoform test (I2, NaOH) - Colorless to cloudy pale yellow (correct)
- Phenol test - Blue to red
Which compound would not react with Br2?
Which compound would not react with Br2?
Select the product of the reactions shown in questions 7-9.
Select the product of the reactions shown in questions 7-9.
What is the IUPAC name of the compound 2,3-dimethylpentane?
What is the IUPAC name of the compound 2,3-dimethylpentane?
Which type of reaction is demonstrated in questions 7-9?
Which type of reaction is demonstrated in questions 7-9?
What is the oxidation product (X) of the given reaction?
What is the oxidation product (X) of the given reaction?
Which alcohol would not react with CrO42-?
Which alcohol would not react with CrO42-?
Which compound will react with Fe+3 ion in iron(III) chloride solution to give a purple color?
Which compound will react with Fe+3 ion in iron(III) chloride solution to give a purple color?
What is the name of the compound shown in the image?
What is the name of the compound shown in the image?
What is the IUPAC name of the given compound?
What is the IUPAC name of the given compound?
What functional group is identified by the suffix '-ide' in the chemical name?
What functional group is identified by the suffix '-ide' in the chemical name?
In Lewis structures, what does the presence of a carbonyl group signify?
In Lewis structures, what does the presence of a carbonyl group signify?
What color change indicates a positive result in a bromine test for alkenes and alkynes?
What color change indicates a positive result in a bromine test for alkenes and alkynes?
Which compound undergoes a color change from orange to greenish blue in a Chromic Acid test?
Which compound undergoes a color change from orange to greenish blue in a Chromic Acid test?
What is the main product of combustion reactions of hydrocarbons?
What is the main product of combustion reactions of hydrocarbons?
Which functional group contains a bond -(COX)?
Which functional group contains a bond -(COX)?
What type of reaction is showcased in questions 7-9?
What type of reaction is showcased in questions 7-9?
Which compound(s) exemplifies a primary alcohol?
Which compound(s) exemplifies a primary alcohol?
What is the oxidation product (X) in the provided reaction?
What is the oxidation product (X) in the provided reaction?
Which alcohol would not react with CrO4^2-?
Which alcohol would not react with CrO4^2-?
What statement accurately describes the solubility of alcohols?
What statement accurately describes the solubility of alcohols?
Which compound reacts with Fe^3+ ions to give a purple color in FeCl3 solution?
Which compound reacts with Fe^3+ ions to give a purple color in FeCl3 solution?
Which compound would form a yellow solid in the iodoform test but not react with Benedict’s reagent?
Which compound would form a yellow solid in the iodoform test but not react with Benedict’s reagent?
What is the product of the reactions shown in questions 20 and 21 from compounds A-D?
What is the product of the reactions shown in questions 20 and 21 from compounds A-D?
Which structural formula corresponds to the IUPAC name 'Propene'?
Which structural formula corresponds to the IUPAC name 'Propene'?
Which compound falls under the functional group 'Amphiphile'?
Which compound falls under the functional group 'Amphiphile'?
Which compound is classified as an 'Amine'?
Which compound is classified as an 'Amine'?
Which compound is likely to be classified as an 'Alkene'?
Which compound is likely to be classified as an 'Alkene'?
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Study Notes
Functional Groups
- Identify functional groups presented in Lewis, Condensed, and Line-angle (skeletal) structures
- Identify functional groups by suffix in chemical names
- Examples of functional groups:
- Ketone: contains C-(C=O)-C bonds
- Aldehyde: contains C-(C=O)-H bonds
- Alkyl Halide: X: Br – alkyl bromide, X: Cl – alkyl chloride, X: I – alkyl iodide, X: F – alkyl fluoride
- Carboxylic Acid: contains C-(COOH) bond
- Ester: contains C-(COO)-C bond
- Amide: contains C-(CO2N)- bond
- Nitrile: contains -(CN) bond
- Acid Halide: contains -(COX) bond
- Acid Anhydride: contains -(CO)O(CO)- bond
Lewis to Condensed Structures
- Be able to match Lewis structure to the correct condensed structure and vice-versa
Safety Materials
- Review safe practices for being in the laboratory
Reactions and Test Results
- Hydrocarbons: Combustion
- Balance combustion reactions
- Products: carbon dioxide (CO2) and water (H2O)
- Alkanes: Radical Halogenation (UV light)
- Predict brominated products
- Alkene/Alkynes (unsaturation)
- Bromine test (no UV): Orange → colorless (POSITIVE test)
- Baeyer's Test (Potassium Permanganate): Purple → brown (POSITIVE test)
- Alcohols
- Identify 1°, 2°, and 3° alcohols
- Chromic Acid (H2CrO4) test: orange → greenish blue (POSITIVE test)
- Phenol test: pH paper (Blue → RED, POSITIVE test)
- Phenol test: Ferric Chloride (pale yellow → purple, POSITIVE test)
- Aldehydes and Ketones
- Methyl Ketone: Iodoform test (I2, NaOH) (colorless → cloudy pale yellow, POSITIVE test)
- Aldehyde: Tollen's Test (AgNH3, NaOH) (→ silver mirror, POSITIVE test)
Exam Questions
- Classification of compounds according to their functional groups
- IUPAC naming of compounds
- Predicting products of reactions
- Identifying type of reaction (Elimination, Addition, Replacement, etc.)
- Solubility of alcohols
- Reactivity of compounds with certain reagents (Br2, Fe+3, etc.)
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