AQA Organic Chemistry 2 Welcome to your AQA Organic Chemistry 2 What is optical isomerism a type of? Stereoisomerism Structural isomerism Functional group isomerism Position isomerism Which of the following causes the formation of a silver mirror when Tollens' reagent is added to it? Butanal Butanone Butanoic acid Butene What is the product when sodium tetrahydridoborate is added to propanone in aqueous ethanol? Propan-2-ol Propan-1-ol Propanoic acid Propanal What happens when Fehling's solution is added to butanone? No reaction A red precipitate Silver mirror formation The solution turns colourless Which of the following is the correct order starting from weakest acid to strongest acid? Butanoic acid, propionic acid, 2-chloropropanoic acid 2-chloropropanoic acid, propionic acid, butanoic acid Butanoic acid, 2-chloropropanoic acid, propionic acid Propionic acid, 2-chloropropanoic acid, butanoic acid Pentanoic acid reacts with propan-1-ol in the presence of acid to form what? Propylpentanoate Pentylpropanoate Propylpentanone Propylpentanal What type of organic compound is biodiesel? An ester Carbooxylic acid An alcohol Aldehyde By what mechanism is benzene converted to nitrobenzene? Electrophilic substitution Nucleophilic substitution Electrophilic elimination Nucleophilic elimination What shape is a benzene molecule? Planar Trigonal planar Pyramidal Bent Which of the following is correct about phenol?I. It acts like an alcoholII. It is acidicIII. The O-H bond is weaker than a C-O bond II and III only I and III only I only II only Which of the following is the strongest base? Secondary amine Primary amine Tertiary amine Phenylamine Ammonia dissolved in ethanol is reacted with excess halogenoalkane. What is most likely to be the end product of the reaction? Quaternary ammonium salt Primary amines Secondary amines Tertiary amines What is the product of the reaction between methylamine and ethanoic anhydride? N-methylethylamide Propylamine 2-methylbutylamine Ethylamide Which of the following is a polyester? Terylene Kevlar Nylon Polyethene Which of the following statements is correct?I. Polyamide is biodegradableII. Poly(ethene) is biodegradableIII. Polyester is a condensation polymer II and III only III only II only I only Which of the following statements is incorrect? Polyesters have higher melting points than polyamides Polyethene is an addition polymer Kevlar is a polyamide Condensation polymers can be hydrolysed What is an alpha helix? A secondary protein structure A primary protein structure A dipeptide An amino acid What are sulphur bridges are found in? The tertiary structure of proteins The secondary structure of proteins The primary structure of proteins Dipeptides What is a molecule blocking the active site of an enzyme called? An inhibitor A substrate An enantiomer A reactant What is the product of oxidation of aldehydes? Carboxylic acid Alcohol They cannot be oxidised Ketones What is the product of a reaction between acyl chloride and alcohol? Ester Carbooxylic acid Acid anhydride Amide How many peaks of C-13 NMR are there for 2-methylbutane? 4 3 2 5 Which of the following is true about tetramethylsilane?I. It is non toxicII. It shows one peak on H-NMRIII. It has Low Boining point I, II and III I and II only I and III only I only How many equivalent H atoms are there in 2-bromobutane with reference to H-NMR? 4 3 2 1 What is the state of the stationary phase in thin-layer chromatography? Solid Liquid Gas Either gas or liquid What is HPLC i (High performance liquid chromatography) a type of? Column chromatography Gas-liquid chromatography Thin-layer chromatography Paper chromatography Time is Up!