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- 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.compound H CH, — N — С — СН — СН, || amide - CH, — CH, — с — СH, - - CH3 – CH = CH - CH1. What letter has an aldehyde with molecular formula C₄H₈O. 2. What letter has an ester with molecular formula C₄H₈O₂ 3. What letter has a ketone with molecular formula C₄H₈O₂ 4. What letter has a carboxylic acid with molecular formula C₄H₈O₂
- Which of (a)-(d) is the correct IUPAC name of the following compound? * HO O 3-methyl-1-phenyl-1-pentanol ○ 3-methyl-5-phenyl-5-pentanol ○ 3-methyl-1-benzene-1-pentanol O 1-phenyl-1-hexanolCH3 Cro3 CH3 Reagent N PCI, 0OCPH H3C CH3 HO, H2SO4 Reagent M K H3C CH3 CH3 Menthol Cro3 CH3COOH OCH,CH3 L `CH3Provide the proper IUPAC or common name for the following compound. CH3 НО.
- 3) Which aa has the strongest acid side chain? a) b) H2N -CH-ö OH H,N -CH-C- OH CH2 ČH2 CH2 CH2 OH NH2 c) d) H2N -CH-ö OH H2N- CH OH CH2 CH-OH ČH3 OH 4) In order to oxidize an alcohol to aldehyde we use А) РСС В) НCL С) НЗО+Give IUPAC names for the following compounds:CH;CH2CH,CH,CH2B1 NH3 G + H + excess
- | CH2C6H5 CH3 + BH3 + H2O2/OH + CrO3, pyridine → A A + CH3-Li + H*/H2O → Bq D eq eq M req M Preq 0 Match each structural formula on the left to a general functional group classification on the right. CH₂CH₂CH₂CNHCH₂- CH3CH₂CH₂C-OH 0 CH₂CH₂CHCOCH3 CH₂CH3 consomsphẩm CH3 anonpudolg COCCHCH₂CH₂ [Review Topics] CH₂CH₂ CH₂CH3 carboxylic acid ester Clear All anhydride amide [References] none of the above Previous Nex SaveThe IUPAC name of the compound H- is (a) 5-formylhex-2-en-3-one (b) 5-methyl-4-oxohex-2-en-5-al (c) 3-keto-2-methylhex-5-enal (d) 3-keto-2-methylhex-4-enal ( The correct statement regarding electrophile is (a) electrophile is a negatively charged species and can form a bond by accepting a pair of electrons from another electrophile (b) electrophiles are generally neutral species and can form a bond by accepting a pair of electrons from a nucleophile (c) electrophile can be either neutral or ar positively charged species and can form a bond by accepting a pair of electrons from a nucleophile (d) electrophile is a negatively charged species and can form a bond by accepting a pair of electrons from a nucleophile.. Which among the given molecules can exhibit tautomerism? Ph Ph I II III (a) III only (c) Both I and II (b) Both I and III (d) Both II and III 1) Which of the following biphenyls is optically active?