the analysis of a mixture of hydrocarbon cracking products, all of which are able to be distilled, but distillation is unable to separate them cleanly. A.
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- Match set A (common active ingredients of insect repellants) to set B (known properties). Then, match set B to set C (structure). Then, match set C to set A. Set A Set B 1. Citriodiol a. Considered as biopesticide b. Lemon eucalyptus oil c. Gold standard repellant 2. Picaridin 3. DEET 4. Citronellol and Geraniol 5. IR-3535 d. Citronella oil e. Repellant of choice for malarial prevention Set C CH3 а. d. CH3 HO OH H3C CH3 H3C CH3 b. е. с. OH OH1. The Ability of a substance to exist in different crystalline form a. Lattice b. Polymorphism c. Crystallization d. Amphoterism 2. A drug can exert its pharmacological effect only if it is a. Protein bound b. Protein unbound c. Free drug d. Both B & C e. Both A & C 3. In order for the drug to be ready and available for absorption, it must be release first from its dosage form with the exception of: a. Capsule b. Tablet c. Solution d. Suspension 4. All of the following are true, except a. Solubility increase with decrease particle size b. Solubility increase with increase surface area c. Solubility increase with increase particle size d. Solubility decrease with decrease surface area 5. The rate in which the drug appears in the bloodstream is also known as a. Half-life b. Potency c. Bioavailability d. Area under the curve1. Alcohols X and Y formed layers with Lucas reagent. Compound X formed brown precipitate with KMnO4 while compound Y did not. Which are the possible identities of compounds X and Y? a.tert-butanol, propanol b.isopropanol, isopentyl alcoholc. methanol, ethanold.tert-butanol, isopropanol2. Alcohols that cannot be distinguished using the Lucas test? a.isopropanol and methanol b.t-butyl alcohol and ethanol c.t-butyl alcohol and 2-methylbenzyl alcohol d.ethanol and n-propanol
- The reaction will produce which of the following results? A. Decolorization of a brown solution B. Production of a brown precipitate C. Acidification of a solution D. Production of fumes What property is expected in the organic product in the reaction? A.Solubility in alcohol is increased B.Polarity of the compound is decreased C.A cis-configuration is expected. D. The electrophile becomes a nucleophile. Which among the reactants is a reducing agent? A.Alkene B.MnO4, anion C.Water D. All of the AboveQ9. The following structure represent a hydroxylated product of head-to-tail dimer of two isoprene units. This product is A. menthol B. camphor. C. linalool D. thymol Q10. The threshold of a chemical compound as odorant in perfumery is determined by (name four): 1... 2... 3. 4.Draw the structure(s) of the major organic product(s) of the following reaction. H. 1. KMno, / NaOH 2. aqueous HCI • You do not have to consider stereochemistry. • Draw one structure per sketcher. Add additional sketchers using the drop-down menu in the bottom right corner. • Separate multiple products using the + sign from the drop-down menu.
- 4. Toluene is used for manufacture of: a- Phthalic anhydride. c- Dimethyl terephthalate (DMT). 5. Isoprene is obtained by: a- Catalytic cracking. b- Phenolic acid. d- Phenol. b- Catalytic reforming.7. Which of the following statements is FALSE regarding the pressure-denatured state? a. It is more highly hydrated. b. It is more compact. c. It contains more voids. d. Noncovalent subunits are dissociated. It is more accessible to solvent molecules. e.1. Explain the basis of separation of the cations into five groups (5 sentences). 2. Explain what chemical properties of the following organic compounds is responsible for the identification of their functional group. (2 sentences each) a. alcohol b. alkene c. aldehydes d. carboxylic acid
- Hi! can anyone here help me to create a schematic diagram about the experiments: " 21. Preparation of Ethyne" by Pdst Chemistry, and "Activity 10: Functional Group Tests for Hydrocarbons" by FRETZ RMT since i dont know what a schematic diagram is, and what processes/contents should be in it. thank you18. Which carbanion is the most stable A. methyl carbanion (CH3-) B. ethyl carbanion (CH3CH2-) C. isopropyl carbanion ((CH3)2CH-) D.Chloromethyl carbanion (CICH2-) 19. Which structural effect best explains the observed trend below: Compound C-CI bond length (A) 1.78 1.77 1.76 H3C-CI CIH₂C-CI Cl₂HC-CI FH₂C-CI 1.76 A. resonance B. C-H hyperconjugation C. Inductive effect D. steric effect 20. Assuming that each methyl/hydrogen 1,3-diaxial interaction destabilizes the methyl substituted cyclohexane by 0.9 kcal/mole; then what is the energy difference between 2 chair conformations of cis-1,3-dimethylcyclohexane. A. 0.9 kcal/mol B. 1.8 kcal/mol C. 2.7 kcal/mol D. 3.6 kcal/molDraw the structure of the major organic product(s) of the reaction. 99-85 / CI You do not have to consider stereochemistry. • All carboxyl and amino groups should be drawn in the neutral form. • If no reaction occurs, draw the organic starting material. • Draw one structure per sketcher. Add additional sketchers using the drop-down menu in the bottom right corn- Separate multiple products using the sign from the drop-down menu. . *** OH HCI 000- /IF [References] Provinu