Welcome to the Problems with Solutions category, where we provide a collection of challenging problems across various scientific disciplines along with their detailed solutions. Sharpen your analytical skills and problem-solving abilities by tackling complex puzzles and thought-provoking scenarios. Explore topics ranging from mathematics and physics to chemistry and computer science. Engage in stimulating exercises that will expand your knowledge and provide step-by-step solutions to guide your understanding. Challenge yourself and embark on a rewarding journey of problem-solving proficiency within this category.
Go to the page with the list of problems. Transformations in Substituted Aromatic Compounds – solutions to problems Solution 1: The key to both transformations will be the functionalization of the benzyl position and the best way to achieve this is by radical halogenation, elimination with alcoholic potash will produce styrene a) and nucleophilic substitution … Read more
Go to the page with the solutions to the problems. Transformations in Substituted Aromatic Compounds – problem list Problem 1) Propose a method for the preparation of styrene (vinylbenzene) and acetophenone (phenylmethylketone) from ethyl benzene. Problem 2) Describe the result of treating 3-methylphenol, with potassium dichromate in the presence of sulfuric acid. Problem 3) Prepare … Read more
Go to the page with the list of problems. Aromatic Substitution Reactions in Benzene and Benzene Derivatives – solutions to problems Solution 1: Assuming that all the structures shown are planar, cyclic and conjugated, the next condition to be fulfilled for them to be aromatic is Hückel’s rule (4n+2) i.e. they must present 2,6,10,14,18, etc.. … Read more
Go to the page with the solutions to the problems. Aromatic Substitution Reactions in Benzene and Derivatives – list of problems Problem 1) Indicate which of the following structures will be aromatic and which will not: Problem 2) Prepare from benzene the following alkylenes in as few steps as possible. Problem 3) Prepare the following bicyclic … Read more
Go to the page with the list of problems. Alcohols, Ethers and Oxiranes – solutions to the problems Solution 1: The following alcohols will be primary: secondary alcohols are bonded to a -CH- as indicated: and only compound III is a tertiary alcohol. Note that compound VI is a diol (it has two hydroxyls) and … Read more
Go to the page with the solutions to the problems. Alcohols, Ethers and Oxiranes – problem list Problem 1) Classify the following alcohols into primary, secondary and tertiary alcohols. 6.2) Indicate which reagents (a-f) give with propanol and tert-butanol the corresponding alkoxide. a) NH3; b) Nao; c) NaOH; d) NaSO4; e) NaNH2; f) NaH Problem … Read more
Go to the page with the list of problems. Haloalkanes – Alkyl halides – solutions to the problems Solution 1: (a) is a tertiary bromide, (b) is a secondary chloride, (c) is a secondary and allylic bromide, (d) is a primary and allylic chloride, (e) is a primary bromide, (f) is a secondary and benzyl … Read more
Go to the page with the solutions to the problems. Haloalkanes – Alkyl Halides – problem list Problem 1: Classify the type of halide (primary, secondary, tertiary, allylic or benzyl) from the following list and draw the carbocation(s) obtained from each. Problem 2: Classify the type of halide (primary, secondary, tertiary, allylic or benzyl) from … Read more
