Why are monomers gases and volatile liquids

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Russian Chemical Reviews , 67 9 , Leboda , A. Which will be the main product when ethanol reacts with excess concentrated phosphoric acid? Ethene B. Methoxymethane C. Ethanoic acid D. Ethanal 8. Alkanes are often described as having low reactivity, although they do react with halogens. This question is concerned with compounds having the molecular formula C3H8O. Refer to the Chemistry Data Booklet to help answer this question.

Write the structures of any organic products formed and give their names. State to which of these three isomers this spectrum can be assigned and give your reasoning.

Identify the two isomers and give the structure of the product. Give an equation for a characteristic reaction of the product. The alkaline hydrolysis of primary halogenoalkanes usually follows an SN 2 mechanism. For which compound would the rate of hydrolysis be fastest?

Which molecule does not act as a nucleophile in a reaction with a halogenoalkane? Ethane B. Ethanol C. Ethylamine D. Water 4. What is the correct order of reaction types in the following sequence? What is the major product when an halogenoalkane alkyl halide is reacted with a large excess of ammonia? An amine B. An amide C. A tetraalkyl ammonium halide D.

An alkene 6. The reaction between 1-bromopropane and warm dilute sodium hydroxide solution is described as an SN 2 nucleophilic substitution reaction. Explain these terms with reference to the two examples given.

Define the term nucleophile and state the nucleophile required for this reaction. Identify the feature which both molecules possess that accounts for this property. When 2-hydroxypropanoic acid is formed from 2-chloropropanoic acid, the product shows no optical activity. Deduce the type of nucleophilic substitution that takes place and explain your answer. B, C and D can be made from A by the following reactions.

A, B and C are liquid at room temperature, and each compound's molecular formula is shown. Sodium was added to each liquid compound. Gas bubbles formed slowly in A but rapidly in C.

The infrared spectra of the compounds showed characteristic absorptions at the following wavenumbers cm-1 : A: B: C: D: and a Explain, by referring to the Data Booklet, how the infrared absorptions listed above can be used to identify the functional groups present in each of the compounds A, B, C and D.

What other product is formed as well as D? Name the other product of the reaction between sodium and C. Explain your choice. State the structural feature which is present in a compound that exists as optical isomers.

Draw the structural formula of the isomer of A that exists as optical isomers, [2] Topic 11 Organic Chemistry Extension When compound A reacts with warm dilute sodium hydroxide solution an organic compound B is formed which has a relative molar mass of Compound B can be oxidised by an acidified solution of potassium dichromate VI to give compound C which contains the same number of carbon atoms as compound B and which shows an absorption peak at cm-1 in the infra-red spectrum.

Explain your answer. Related documents. Chemistry of Life. Unit 2 Test Review Know the vocabulary terms from 1. Intro 1. Compound Words PPT. Download advertisement. Add this document to collection s. Positional isomerism A type of structural isomerism in which the functional group is in a different position on the carbon skeleton. What is a double bond? These are relatively easy exam marks. Make sure that you learn this thoroughly.

Addition reactions of alkenes An addition reaction of an alkene involves the opening of the double bond with the formation of a saturated addition product.

Remember that a curly arrow shows the movement of an electron pair. Addition using acidified manganate VII Note that [O] is used in equations to represent an oxidising agent. Many candidates in exams get this reaction wrong by incorrectly adding Mn. The process of adding hydrogen across a double bond is sometimes referred to as hydrogenation. Further addition reactions of ethene Addition reactions of alkenes are useful in organic synthesis. Some further addition reactions of ethene are shown in the flowchart below.