3-indanetrione monohydrate / triketohydrindene hydrate) | Oxidative deamination and decarboxylation; reduction of ninhydrin | free α-amino and carboxyl groups | purple-blue color solution | Yellow solution | Xanthoproteic | Conc. HNO3‚ 50% NaOH | Nitration substitution in Benzene ring | aromatic amino acids | yellow precipitate then turns orange when neutralized with NaOH | clear solution‚ no change in color | Hopkins-Cole | Hopkins-Cole reagent | Condensation of indole group with glyoxylic acid
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DV 1. Customer satisfaction 1. Customer satisfaction is a key factor in formation of customer’s desires for future purchase (Mittal & Kamakura‚ 2001). 2. Furthermore‚ the satisfied customers will probably talk to others about their good experiences. This fact‚ especially in the Middle Eastern cultures‚ where the social life has been shaped in a way that social communication with other people enhances the society‚ is more important (Jamal & Naser‚ 2002). 3. Customer satisfaction leads to repeat
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Classification Tests for Carboxylic Acid and Derivatives Mary Catherine Sarte‚ John Emmanuel Sy‚ Allurie Umel‚Franklin Yap‚ Mary Christine YouIntroduction Carboxylic acids derivatives are simply groupsof compounds that contain a carbonyl group butwith an electronegative atom attached to thecarbon. The difference in the structure leads to amajor change in reactivity. The reactions of thesegroups of compounds involve nucleophilicsubstitution. Although there are abundant kindsof carboxylic acid derivatives
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with water. 1 (4) Give the IUPAC name of the organic compound 1 O II (CH3)2 C CH C CH3 = − − (5) Name the monomers of nylon 2 or nylon 6 ploymer. 1 (6) Give one example of an artificial sweetener used by the diabetic patients. 1 (7) Direct nitration of aniline is not carried out. Explain why? 1 (8) What type of linkage holds together the monomers of D.N.A.? 1 (9) Examine the illustration of a portion of the defective crystal given below and answer the following questions. (5) (i) What are
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Mary Eunice Agapito‚ Denmarc R. Aranas*‚ Limuel Joseph V. Bacani‚ and Steven Arthur Baluyot Analysis of Hydrocarbons Department of Biology‚ University of Santo Tomas‚ Manila‚ Philippines Abstract In this experiment we performed parallel chemical test method to identify an unknown. The reflux setup was used to prevent evaporation in mixing the reactants in an inert solvent with its boiling point. Another highlight of this experiment is the liquid-liquid extraction wherein a solution containing
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English Proficiency This test is designed to assess the test takers’ general proficiency in the use of English language as a means of self-expression in real life situations and specifically to test the test takers’ knowledge of basic grammar‚ their vocabulary‚ their ability to read fast and comprehend‚ and also their ability to apply the elements of effective writing. 1. Grammar 1. Agreement‚ Time and Tense‚ Parallel construction‚ Relative pronouns 2. Determiners‚ Prepositions‚ Modals
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curve was linear over the range 0.1-5.0μg/ml. The method was also suitable for the assay of paracetamol-codeine combination drug as well as estimation of the amount of constituents in urine when the wavelength of UV detection was 245 nm with acetanilide as the internal standard. Keywords: Chromatography‚ isocratic‚ internal standard‚ in vivo and in vitro INTRODUCTION Paracetamol (N-(4-hydroxyphenyl) acetamide) tablets are listed among the essential drugs selected for the health care delivery
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BACHELOR OF SCIENCE (HONS) BIOTECHNOLOGY YEAR 1 SEMESTER 1‚ 2 & 3 UDBB 1164 FUNDAMENTAL ORGANIC CHEMISTRY 0 EXPERIMENT 1 PROPERTIES OF HYDROCARBONS Introduction Hydrocarbons are compounds which contain only carbon and hydrogen‚ can be classified into several types‚ depending on their structure. Aliphatic hydrocarbons are divided into three classes: alkanes (e.g. methane‚ ethane and propane) have only single bonds‚ and are said to be saturated; alkenes (e.g. ethene and propene)
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HYDROCARBONS 365 UNIT 13 HYDROCARBONS Hydrocarbons are the important sources of energy. After studying this unit‚ you will be able to • • name hydrocarbons according to IUPAC system of nomenclature; recognise and write structures of isomers of alkanes‚ alkenes‚ alkynes and aromatic hydrocarbons; learn about various methods of preparation of hydrocarbons; distinguish between alkanes‚ alkenes‚ alkynes and aromatic hydrocarbons on the basis of physical and chemical properties; draw and
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163 CHAPTER 13 HYDROCARBON Hydrocarbons are composed of Carbon and hydrogen. The important fuels like Petrol‚ kerosene‚ coal gas‚ CNG‚ LPG etc. are all hydrocarbons or their mixture. Sources: Petroleum and natural gas are the major sources of aliphatic hydrocarbon while coal is an important source of aromatic hydrocarbons. The oil trapped inside the rocks is known as petroleum. PETRA – ROCK‚ OLEUM – OIL. The oil in the petroleum field is covered with a gaseous mixture known as natural
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