should happen is that the nitric acid and ammonia react with the aromatic ring and gives a coloured salt compound. When Nitric acid is heated with a protein like tyrosine it gives off a yellow colour ‚or tryptophan and orange colour this is down to nitration. This is why this test is used for the presence of an activated benzene ring. The “(4) Test for sulphur”this
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Experiment Date: 3/12/2012 Photochemistry: Photoreduction of benzophenone and rearrangement to benzpinacolone Abstract: In this experiment Benzpinacolone was synthesized in a process that contained two steps. First the photoreduction of benzophenone in 2-propanol‚ which was done by placing the flask under sunlightfor the absorption of the UV rays to carry out the reaction. Then the second part was the dehydration of benzpinacol to benzpinacolone‚ where the benzpinacol product was converted
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Reactions of pyridine Introduction: 1. Pyridine structure: 2. Iupac name: Pyridine‚ other name: Azine & Azabenzene. *Important commercial alkyl pyridinium compound is α - methyl- pyridine (2)‚ βpicoline (3)‚ γ- picoline ( 4 ) ‚ 2‚6 - lutidine ( 5 ) ‚ 3‚5 - dimethyl- pyridine ( 6 ) ethyl-2 - methyl- pyridine ( 7 ) and 2‚4‚6 - collidine ( 8 ) . In general‚ the alkyl -substituted pyridine as many other precursors used in pyridine E-commerce. From these further alkyl substituted pyridine
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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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a boiling chip to any liquid before heating it. • Always wear department approved eye goggles at all times. • Long pants and closed toe shoes are required. Table of Reagents Reagent Mol. Wt. (g/mol) Bp ( ͦ C) Mp ( ͦ C) Density (g/ml) Acetanilide 135.17 304 113-115 1.219 Fluorene
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Carboxylic Acids and Their Derivatives Ma. Marielle M. Medura Prof. Emma Boncales Chem 23A (TTH 01:00-4:00 p.m) Carboxylic Acids and Their Derivatives I. Introduction Carboxylic acids is an organic compound that contains a carboxylic group(-COOH). Its general formula is R-C=OOH with R referring to the rest of the molecule such as H and C. They are directly attached to a carbonyl group and the interaction between them affects the reactions of each. The polarity of the O-H bond
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(ii) One in three marks questions. (iii) All the three in five marks questions. Guidelines for Units 10-13 of syllabus. These units include questions on: Nomenclature Reasoning Distinguishing between compounds Name reactions Reaction Mechanism Word problems (conversions) covering Properties and reactions of functional groups : 2 marks : 6 marks : 2 marks : 2 marks : 2 marks : 5 marks E. Numericals : Weightage of 8 -10 marks in total has been assigned to numericals.
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Name : ___________ General Instructions: 1. Revise UNITS 1 to 5 2. Solve numerical problems concerning UNITS 1‚2 ‚3 and 4 from previous (2010-2013 ) Sample /CBSE question papers . 3. Prepare a project report on any of the following suggested Investigatory projects. TOPICS FOR PROJECT WORK 1. Study of quantity of casein present in different samples of milk. 2. Extraction of essential oils present in Saunf (aniseed)
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The Purity and Purification of Solids Melting Points CH-337 Abstract: The purpose of this experiment was to find the eutectic point for the mixture of naphthalene and biphenyl. This was done by measuring the melting point of both pure substances and five mixtures of different ratios. The purpose of the second section was to identify an unknown sample by measuring its melting point and mixing it with two known substances and comparing them. The results suggest that the eutectic point is closest
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voltage-gated ion channels in arteries exposed to high blood pressure Gauthier‚ K. and N. Rusch‚ 2001. Rat coronary endothelial cell membrane potential responses during hypertension Li‚ H.‚ D. Gutterman‚ N. Rusch‚ A. Bubolz‚ and Y. Liu‚ 2004. Nitration and functional loss of voltage-gated K+ channels in rat coronary microvessels exposed to high glucose Liu Y‚ Hudetz AG‚ Knaus HG‚ Rusch N.‚ 1998. Increased expression of Ca2+-sensitive K+ channels in the cerebral microcirculation of genetically
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