Concept explainers
(a)
Interpretation: All stereoisomers of molecular formula
Concept introduction:
(b)
Interpretation: The number of different fraction that would be obtained from the given reaction is to be predicted.
Concept introduction: Alkyl halides undergo chlorination when they are treated with
(c)
Interpretation: The optically active fractions are to be identified.
Concept introduction: Alkyl halides undergo chlorination when they are treated with
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Organic Chemistry
- Citronellol ((3R)-3,7-dimethyloct-6-en-1-ol, C10H20O) is an organic fragrance found in the oil extracted from lemon grass. a) Name the two functional groups present in the molecule. b) When a few drops of bromine dissolved in hexane is added to a sample of citronellol the brown colour of the bromine rapidly disappears. i. What type of chemical reaction has occurred? ii. Draw the structure of the product formed. iii. Name the product. c) The product formed when citronellol is heated with a mixture of potassium dichromate and sulfuric acid gives a yellow/orange precipitate when shaken with Brady’s reagent (2,4-dinitrophenylhydrazine). It also shows a positive result with Fehling’s solution. i. What type of chemical reaction has occurred ? ii. What type of functional group is present in the product? d) Explain the type of stereoisomerism which may occur in citronellol.arrow_forward(a) Chromic acid oxidation of 4-tert-butyl-1,2-dimethylbenzene yielded a single compound having the molecular formula C12H14O4. What was this compound?(b) What product is expected from chromic acid oxidation of 2,3-dihydroindene?arrow_forward[10] 10] Q1. Do the following conversions as directed. Write the complete reaction equation. (a) Benzaldehyde to Benzoic Acid. (b) Propanal to 1-propanal (c) Cyclohexanone to Cyclohexanol (d) Acetaldehyde to Ethyl alcohol (e) Acetone to Iso-propyl alcoholarrow_forward
- When the conjugate acid of aniline, C6H5NH3+, reacts with the acetate ion, the following reaction takes place: C6H5NH3+(aq)+CH3COO(aq)C6H5NH2(aq)+CH3COOH(aq) If Kafor C6H5NH3+ is 1.35105 and Kafor CH3COOH is 1.86105 , what is K for the reaction?arrow_forwardDraw the product and indicate the stereochemistry when the given alcohol is treated with each reagent: (a) HBr; (b) PBr3; (c) HCl; (d) SOCl2 and pyridine.arrow_forwardDraw the product and indicate the stereochemistry when the given alcohol is treated with each reagent: (a) HBr; (b) PBr3; (c) HCI; (d) SOCI, and pyridine.arrow_forward
- Methyl isocyanate, CH3 -N= C = O, is used in the industrial synthesis of a type of pesticide and herbicide known as a carbamate. As a historical note, an industrial accident in Bhopal, India, in 1984 resulted in leakage of an unknown quantity of this chemical into the air. An estimated 200,000 people were exposed to its vapors, and over 2000 of these people died. Q.) Methyl isocyanate reacts with strong acids, such as sulfuric acid, to form a cation. Will this molecule undergo protonation more readily on its oxygen or nitrogen atom? In considering contributing structures to each hybrid, do not consider structures in which more than one atom has an incomplete octetarrow_forward(9) How many chiral centers are present in a molecule of 1,3-dimethylcyclohexane? (C) 2 (D) 3 1 (A) O (10) What is the percent composition of a mixture of (S)-(+)-2-butanol, [a] = +13.52°, and (R)-(-)-2-butanol, [a] = -13.52°, with a specific rotation [a]D = -6.76° (A) 75%R 25%S (B) 25%R 75%S (C) 50%R 50%S 67%R 33%Sarrow_forward(ii) Name the following using IUPAC system of nomenclature: (a) CH2 (Cl) CH (NH2) CHO (b) CH3 C (Br) CH2 CH (F) COOH Brarrow_forward
- H,C-CH-CH-CH, CHO (a) 3-ethyl-2-methybutanal (b) 2, 3-dimethylpentanal (c) 2-ethyl-3-methylbutanal (d) 2-ethyl-3-methylbutan-3-al CHO 2. The IUPAC name of is Br (a) 2-methyl-3-bromohexanal (b) 3-bromo-2-methylbutanal (c) 2-methyl-3-bromobutanal (d) 3-bromo-2-methylpentanal 3. The IUPAC name of the compound HO- isarrow_forwardCompounds B and C are hydrocarbons with the structural formulae as shown below. CH, „CH, в (a) Name compounds B and C according to the IUPAC nomenclature. (b) Both B and C can undergo oxidation reaction with the same oxidizing agent. Write chemical equations involved and explain the differences between these two reactions. (c) Name one reaction that converts B to methylcyclohexane.arrow_forwardWhich products are formed when hydrobromic acid is added to (a) trans-2-hexene, (b) 2-methyl- 2-pentene, and (c) 4-methylcyclohexene, and how many regioisomers can be formed in each case?arrow_forward
- Chemistry: Principles and ReactionsChemistryISBN:9781305079373Author:William L. Masterton, Cecile N. HurleyPublisher:Cengage Learning