Which of the following would you expect to produce a yellow solution with the ninhydrin test? A. Valine B. Piperidine C. Aniline D. trimethylamine A sample was observed to have the following responses to qualitative analysis. Insoluble in water Insoluble in 5% NaOH Insoluble in 5% HCI - Formed a milky solution (precipitate) with alcoholic silver nitrate test What is the most likely identity of this unknown? A. Butanal B. Hexanal C. 1-chlorohexane D. 1-chlorobutane

Which of the following would you expect to produce a yellow solution with the ninhydrin test? A. Valine B. Piperidine C. Aniline D. trimethylamine A sample was observed to have the following responses to qualitative analysis. Insoluble in water Insoluble in 5% NaOH Insoluble in 5% HCI - Formed a milky solution (precipitate) with alcoholic silver nitrate test What is the most likely identity of this unknown? A. Butanal B. Hexanal C. 1-chlorohexane D. 1-chlorobutane

EBK A SMALL SCALE APPROACH TO ORGANIC L

4th Edition

ISBN:9781305446021

Author:Lampman

Publisher:Lampman

Chapter39: Preparation Of An Α, Β-unsaturated Ketone Via Michael And Aldol Condensation Reactions

Section: Chapter Questions

Problem 2Q

See similar textbooks

Similar questions

Thiamine is assayed by? I. Spectrophotometry II. Fluorometry III. Turbidimetry A. I, II and III B. I and II only C. II only D. I only
State and describe any instrument that you will use to separate components in a mixture of amino acids containing histidine, lysine and cystein.
13.) A mixture containing 50% mole of A is distilled at a temperature T, what is the distillate to residue ratio? А. 1.5 B. 0.33 C. 0.67 D. 2.0 E. 0.50 30 50 60 Mole 5k of A
For standard turbidity measurements, the increase in signalis due toa.) higher amounts of analytes that complex with formazin.b.) higher amounts of analytes that precipitate with formazin.c.) higher amounts of analytes that react with formazin.
Please don't provide handwritten solution .....
What is Solubility of phenazopyridine in water?acidic media? basic media ?and what is most common solvent?
TEST/REAGENT EXPERIMENTAL OBSERVATION A. Orcinol a. Brick red precipitate B. Benedict's test b. Magenta solution C. Ammoniacal silver nitrate c. Colored complex D. FeCl3 d. Red to blue litmus E. C6H5SO₂Cl, excess NaOH e. Blue green compound F. NaOH, H₂O, heat f. Decolorization G. t-butyl chloride/ AICI3 g. Liquid residue (lower layer) Silver mirror H. Br₂ in water, dark h. I. NH₂OH-HCI, KOH, FeCl3 i. Orange to red crystals J. Resorcinol Red condensation product Orange precipitate K. 2,4-DNPH k. L. lodoform test I. Yellow solution m. Yellow precipitate Given the following reagents and tests above, what could best differentiate the two compounds below? Provide also the letter of the expected experimental observation and state which of the two would give positive result. i تر j. "NH₂
What is the purpose of adding sodium carbonate in the mixture of water and water- soluble components obtained from the solid-liquid extraction step of isolation of alkaloids from tea leaves? A.Increases the solubility of alkaloids in water thus ensuring maximum yield B.deprotonates tannins so that they will remain in the aqueous layer during liquid-liquid extraction C.'hydrolyses cellulose thus separating it along with other water-soluble components D.protonates the alkaloid to make the solution acidic
TEST/REAGENT EXPERIMENTAL OBSERVATION A. Orcinol a. Brick red precipitate B. Benedict's test b. Magenta solution C. Ammoniacal silver nitrate c. Colored complex D. FeCl3 d. Red to blue litmus E. C6H5SO₂Cl, excess NaOH e. Blue green compound NaOH, H₂O, heat F. f. Decolorization G. t-butyl chloride/ AICI3 g. Liquid residue (lower layer) H. Br₂ in water, dark h. Silver mirror i. Orange to red crystals I. NH₂OH-HCI, KOH, FeCl3 J. Resorcinol K. 2,4-DNPH j. Red condensation product Orange precipitate k. L. lodoform test 1. Yellow solution m. Yellow precipitate Given the following reagents above, what could best differentiate the two compounds below? Provide also the letter of the expected experimental observation and state which of the two would give positive result. FB HO НО ||I IT HT Illo Il
Based on the following samples, which have positive result with iodoform test? Explain. a. Acetaldehyde b. Benzaldehyde c. Acetone d. Acetophenone e. Isopropyl alcohol
Mobile phase is: Select one: O a. Silica gel O b. Liquid phase O c. Solid phase lica gel must not b
What is the role of Glycerin in the assay of Boric Acid?I. The reagent prevents the formation of pink color earlier than the expected endpoint.II. The reagent allows the reaction of protons from the acid sample with the hydroxyl ions from the titrant.III. It enhances the water solubility of the difficultly soluble boric acid. a. I, II & III b. II & III c. I & II d. I only e. I & III