aspirin to treat. The bark from willow trees‚ along with a few other trees‚ produces an anti-inflammatory agent called salicin. Salicin is an aromatic alcohol‚ this is indicated by the OH group of the benzene ring (benzene is aromatic hydrocarbon‚ which is an unsaturated cyclic hydrocarbon). Benzene and the OH groups are substituents as shown in the diagram. By the
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flavoring has. Esters are derived from carboxylic acids. A carboxylic acid contains the –COOH group‚ and in an ester the hydrogen in this group is replaced by a hydrocarbon group of some kind. This could be an alkyl group like methyl or ethyl‚ or one containing a benzene ring like phenyl[1]. Esters are widespread in nature. Small esters‚ in combination with other volatile compounds‚ produce the pleasant aroma of fruits. It is amazing that so many fragrances and flavors can be prepared by simply
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EFFECTS OF VOLATILE ORGANIC COMPOUNDS (10244818) Volatile organic compounds (VOCs) are organic chemical compounds that have high enough vapor pressures under normal conditions to significantly vaporize and enter the atmosphere. According to EPA ’s Terms of the Environment‚ a volatile organic compound is "any organic compound that participates in atmospheric photochemical reactions except those designated by EPA as having negligible photochemical reactivity." VOC can also stand for the term “volatile
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Chapter 1 MULTIPLE CHOICE QUESTIONS Topic: Atomic Orbitals 1. A) B) C) D) E) In quantum mechanics a node (nodal surface or plane) is: a place where Ψ is negative. a place where Ψ is positive. a place where Ψ = 0. a place where Ψ2 is large. a place where Ψ2 is negative. Ans: C Topic: Atomic Orbitals‚ Molecular Orbitals 2. When the 1s orbitals of two hydrogen atoms combine to form a hydrogen molecule‚ how many molecular orbitals are formed? A) 1 B) 2 C) 3 D) 4 E) 5 Ans:
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Topic Acid-Base Theory (Unit 1) Acid-Base Theory (Unit 2) Isomerism (Unit 1) Isomerism (Unit 2) Nomenclature Reaction Mechanism (Unit 1) - Introduction to Mechanism Reaction Mechanism (Unit 2) - Nucleophilic substitution Reaction Mechanism (Unit 3) - Nucleophilic substitution Reaction Mechanism (Unit 4) - Nucleophilic substitution Reaction Mechanism (Unit 5) - Nucleophilic substitution Reaction Mechanism (Unit 6) - Nucleophilic substitution Reaction Mechanism (Unit 7) - Elimination Reaction Mechanism
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SUMMARY OF ORGANIC REACTIONS SECTION 1 - ALIPHATIC Aldehydes and ketones |Type of reaction |Mechanism | |1. oxidation (aldehydes only): aldehyde ( carboxylic acid |n/a | | | | |reagents: potassium
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that this component has a molecular formula C10H12O. This molecular formula equates to an IHD of 5. It is evident‚ by calculating the IHD‚ that this compound contains a benzene ring. By heating anisene with hydroiodic acid the following reaction occurs: [rxn 1] The resultant of a phenol indicates that anisene is‚ in fact‚ an aryl methyl ether with the formula C9H9OCH3. Since all these facts have been established about the structure of anisene‚ what is to be determined from this experiment is the structure
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Fractional Distillation & Gas Chromatography Exp. 1 Pre-Lab: 1) When two substances whose molecules are very similar from a liquid solution‚ the vapor pressure of the mixture related to vapor pressure of the pure substance. Also it could be defined as a two liquid are ideal solution when they don’t react with each other and they make no association. 2) Are a mixture of at least two different liquid‚ and known also as a mixture of two or more liquid in such away that its component
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Chemistry‚ English (v) Benzene to 4-bromonitrobenzene :- (vi) Benzyl alcohol to 2-phenylethanoic acid :- (vii) Ethanol to propanenitrile :- (viii) Aniline to chlorobenzene :- (ix) 2-Chlorobutane to 3‚ 4-dimethylhexane:- ©TutorBreeze.com Please do not copy the answer given here Write to us for help in understanding the solution NCERT/CBSE CHEMISTRY CLASS 12 textbook http://www.TutorBreeze.com Contact for Online Tutoring in Physics‚ Math‚ Chemistry‚ English (x) 2-Methyl-1-propene to 2-chloro-2-methylpropane:-
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This is because the benzene ring can be drawn both ways. On the left‚ the benzene ring is shown as a hexagon that has three double bonds‚ and on the right‚ the benzene ring is shown also as a hexagon‚ but with a circle inside. Two ways to Draw the Chemical Structure of
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