Lialh4 - Study guides, Class notes & Summaries

what is important while doing organic synthesis? - - using starting materials that are safe and non/low toxic - using reactions w a high atom economy/percentage yield - reducing waste + increasing efficiency - minimising solvent use - as they can often be flammable/toxic alkane to halogenoalkane - X2, UV light halogenoalkane to alkene - KOH, ethanol, reflux alkene to halogenoalkane - HX, 25 degrees alkene to dibromoalkane - Br2, 25 degrees halogenoalkane to primary amine - excess ethano...

AQA A-Level Organic Synthesis Latest 2023 Already Passed Alkane to Halogenoalkane X2, UV light Mechanism = free radical substitution Halogenoalkane to Alkene KOH, dissolved in ethanol and heated under reflux Mechanism = Elimination Alkene to Halogenoalkane HX at room temperature Mechanism = Electropholic Addition Halogenoalkane to Alcohol Warm NaOH/KOH, heated under reflux Mechanism = Nucleophilic Substitution Halogenoalkane to Nitrile KCN, dissolved in ethanol and heated under reflux Mechan...

Edexcel A-level Chemistry Organic Chem Reactions questions completely solvedAlkane to Halogenoalkane Halogen and UV light (free radical substitution) Alkene to Alkane Hydrogen gas, Nickel catalyst and 150°C (addition) Use of catalytic hydrogenation Manufacture of margarine from unsaturated vegetable oils Alkene to Dihalogenoalkane Add bromine LIQUID and shake (electrophilic addition) Alkene to hydroxyhalogenoalkane Add bromine WATER and shake (electrophilic addi...

Chemistry AQA A level Test Questions with Answers Graded A+ (Verified Solutions) (2024/2025) What's the Test for a Carbonyl group? - - Brady's reagent (2,4 DNPH) Orange to yellow precipitate Do Carbonyls have a lower or higher boiling point when compared to a corresponding Alcohol? - - Lower Do Carbonyls have a higher or lower boiling point when compared to a corresponding Alkane? - - Higher Do Carbonyls dissolve in water? - - Yes limited association with water molecules What's the t...

Chem 210 Module 7 Exam (2023/2024) Newest Questions and Answers (Verified Answers) Strong oxidants - ANSWER️️ KMnO4, CrO3 mild oxidants - ANSWER️️ PCC, O3 strong reductants - ANSWER️️ LiAlH4, NaBH4, H2 (Pt or Lindlars), Na/Li NH3, H2SO4, BH3 primary alcohol to carboxylic acid (oxidant) - ANSWER️️ CrO3 primary alcohol to aldehyde (oxidant) - ANSWER️️ PCC aldehyde to primary alcohol (reductant) - ANSWER️️ NaBH4 aldehydes to primary alcohol, carboxylic acids to prim...

Edexcel Organic Chemistry A Level Reactions latest 2022Thermal Cracking - High temperatures (1000C) - High pressure (up to 70atm) - Produces ALKENES - E.g. ethene --> polyethene Catalytic Cracking - Zeolite catalyst - Slight pressure - High temperature (450C) - Produces AROMATICS Reformation Alkanes --> cycloalkanes/ aromatic hydrocarbons - Straight chain alkanes are a lot more likely to 'knock' - Pt Catalyst (ct) Alkene → Alkane - Hydrogen - 150C - N...

Chapter 12-Organic Chemistry Questions With Verified Answers 2024 Upload reduction - Correct Answer increasing the hydrogen content or decreasing the oxygen content reduction of carboxylic acid gives... - Correct Answer primary alcohol reduction of ester gives... - Correct Answer primary alcohol reduction of aldehyde gives... - Correct Answer primary alcohol reduction of ketone gives... - Correct Answer secondary alcohol reduction of carbonyls by hydrogenation - Correct Answer 1....

Tamu Chem 238 Final Exam Questions and Answers 100% Solved | Already Passed 1. Reaction of ethyl magnesium bromide with water will generate? a. ethanol b. ethane c. butane d. ethyl magnesium hydroxide e. a peroxide - b 2. Under conditions of thermodynamic control, product distribution is governed by: a. the relative stabilities of the products b. the relative energies of the transition states leading to the products c. the rate at which each product is formed d. a and b e. b and c ...

AQA A-LEVEL CHEMISTRY PAPER 2MARKING SCHEME JUNE 2022 AQA A-LEVEL CHEMISTRY PAPER 2MARKING SCHEME JUNE 2022 A-level CHEMISTRY 7405/2 Paper 2 Organic and Physical Chemistry Mark scheme June 2019 Version: 1.0 Final *196A74052/MS* Mark schemes are prepared by the Lead Assessment Writer and considered, together with the relevant questions, by a panel of subject teachers. This mark scheme in...

Package Title: Solomons Test Bank Course Title: Solomons 11e Chapter Number: 17 Question type: Multiple choice 1) Which of the following is the best name for the following compound? O O a) Isobutyl ethanoate b) Ethyl isopropanoate c) 3-methylbutyl ethanoate d) Ethoxy isobutyl ketone e) Ethyl 3-methylbutanoate Answer: E Topic: Nomenclature Section: 17.2 Difficulty Level: Medium 2) The correct structure for ethyl 3-methylbutanoate is: O O O O O O O O O O I II III IV V a) I b) II c) III d) IV e) V ...