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Briefly discuss why increased chlorination of organic compounds increases the recalcitrance or stability of the molecule in the environment.
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- What is meant by recalcitrance,give an example and briefly discuss why increased chlorination of organic compounds increases the recalcitrance or stability of the molecule in the environment.Most of the following conclusions regarding the photo shown above are correct Except: All of the following are correct regarding the disk diffusion test photos EXCEPT : Zone of inhibition Chlorine Chlorine Chlorine O-phenylphenol Hexachlorophene O-phenylphenol Hexachlorophene Hexachlorophene O-phenylpheno Quat Quat Quat Staphylococcus aureus (gram-positive) Escherichia coli Pseudomonas aeruginosa (gram-negative) (gram-negative) Select one: O to. Gram negative bacteria are the most sensitive to chemical agents O b. Only one of the four chemicals affected Pseudomonas O c. Gram positive bacteria are the most sensitive to disinfectants O d. Hexachlorophene was effective only against Gram positive bacteria. O and. Chlorine was effective against all bacteria bacteria testedExplain the differences, if any, between adsorption and gas solid chromatography
- If the dehydration reaction of an alcohol is successful, what changes would be seen in the IR spectrum for the product compared to the starting materialName at least two alternative chemical tests that can be performed to characterize functional groups/hydrocarbons in an unknown sample (aside from Nitration test, Bromine test, and basic oxidation reaction test.)Free radical chlorination (Cl2, hv) is not very selective. Which of the following compounds will give the most selective mono-chlorination?
- The two most abundant pigments in the chromatography results were carotene and Xanthophyll. What colors are absorbed or reflected by various pigments and how much is there?Based on the color of the pigments on the chromatography paper, explain which wavelengths of lights are absorbed and reflected by chlorophyll a, chlorophyll b, xanthophyll, and beta caroteneThe most efficient disinfectant chlorine, discuss why? ( subject: medical microbiology lab )
- Chlorophyll is the green pigment in the leaves of the plant, carotene imparts orange coloration while anthocyanin is known as the purple pigment. In one of their laboratory, a group was tasked to confirm the presence of these pigments on a certain leaf. After crushing several leaves, they soak it in isopropyl paper strip was dried and the group got the following measurements from the submerged tip of the paper strip: solvent font - 9.9cm, purple ink -8.6cm, yellowish orange ink - 6.4cm and green ink - 4.2 retention factor of each pigment. (d) Rank each pigment according to their solubility in the given solvent.State the conditions (temperature and pressure) above which chloroform exists as a supercritical fluid and give a literature reference for this information.A scientist synthesized an unknown compound. It is soluble in sulfuric acid but not water. They then took a proton NMR using deuterated chloroform. The results are shown below. Identify the unknown compound using the data provided. Bonus: What is the IUPAC name of this compound?