1 Ethene may be converted into poly(ethene). What type of reaction is this? (A) Condensation (B) Hydrolysis (C) Oxidation/reduction (D) Polymerisation 2001:1 1 2 You have carried out a first-hand investigation to compare the reactivity of an alkene with its corresponding alkane. (a) State the name of the alkene. 2002:16(a) 1 (b) Outline a procedure to compare the reactivity of this alkene with its corresponding alkane. 2002:16(b) 2 (c) Describe the
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Surname Centre No. Initial(s) Signature Candidate No. Paper Reference(s) 4335/1F Examiner’s use only London Examinations IGCSE Team Leader’s use only Chemistry Paper 1F Foundation Tier Monday 9 May 2005 – Morning Time: 1 hour 30 minutes Materials required for examination Nil Items included with question papers Nil Question Leave Number Blank 1 2 3 4 5 6 7 8 9 Instructions to Candidates In the boxes above‚ write your centre number and candidate
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Completely filled p subshell (exc. He) * Great stability * Except krypton and xenon‚ elements in noble gases are totally inert chemically * The noble gases are all found in minute quantities in the atmosphere‚ and are isolated by fractional distillation of liquid air. | helium | 1s2 | neon | [He]2s22p6 | argon | [Ne]3s23p6 | * Transition Metals * Group 1B and 3B-8B * Incompletely filled d subshells * Readily produce cations * ductile and malleable‚ and conduct
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| |Sedimentation |None |None |Particles will eventually settle out. | |Method of separation of components |Simple or fractional distillation‚ |Destabilise and filter |Filtration | | |chromatography | |
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include the reaction of cyclopentadiene with itself as it will dimerize to form dicyclopentadiene if kept at room temperature as well as the exo isomer of the product. Reaction Mechanism: Experimental Procedure To begin this experiment‚ a fractional distillation was set up in order to distill dicyclopentadiene. A 10 mL conical vial was filled with 5 mL of dicyclopentadiene and then heated to a steady boiling point (40-42 C). Cyclopentadiene was then placed on ice while
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chem FATHER AGNEL SCHOOL CLASS IX SUB : CHEMISTRY Matter In Our Sorroundings 1. Define matter. 2. What are the characteristics of matter? 3. What do you mean by the following terms: a. Evaporation b. Sublimation c. Condensation d. Latent Heat of Fusion e. Latent Heat of vaporisation. f. . Melting point g. Boiling point 4. Why do gases diffuse rapidly? 5. Write the relationship
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...................... .........................................................................6 3.6. Sugar Fermentation Process ......................... .............................................................6 3.7. Fractional Distillation Process ........................ ..........................................................7 3. Ethanol-based engines............................... .............................................................................7 4.
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Title: Preparation of Cyclohexene from Cyclohexanol Aim: To prepare an alkene‚ cyclohexene‚ by the dehydration of an alcohol‚ cyclohexanol‚ and better understand the processes that take place during this reaction. Introduction: One of the common ways of preparing an alkene is through the dehydration of an alcohol. In this experiment cyclohexanol is dehydrated to prepare cyclohexene while using sulfuric acid as a catalyst. A bromine test can be later done to ensure that the end product is
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A PROJECT PROPOSAL ON “Analysis of NPAs of banks and impact of RBI policies on NPAs of banks” Submitted By Manasa Jarugula 09MBMA43 A REPORT ON THE INDUSTRIAL VISIT ON SATURDAY‚ 29th JANUARY‚ 2011. Experience at AUROBINDO Pharma: AUROBINDO Pharma manufacturing unit number 9 is located near Sangareddy town which is the head quarters of Medak district. It is comparatively nearer to Hyderabad than Medak. Our journey started @school of management studies‚ University of Hyderabad at
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to benzene [71-43-2] to form cumene [98-82-8]‚ which is then oxidized by air to cumene hydroperoxide‚ and cleaved in the presence of an acid catalyst like zeolite. Phenol [108-95-2] and acetone [67-64-1] produced in the process are recovered by distillation. Ratio of phenol to acetone is 1:0.6. (2) By Dehydrogenation of 2-proponal The hydration of propene [115-07-1] gives 2-propanol [67-63-0]‚ which is then dehydrogenated to acetone. In the United States a C3 stream containing 40 – 60 % propene
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