abdelraheem_mohamed

عبدالرحيم محمد احمد محمود

مدرس -

كلية العلوم

العنوان: جامعة سوهاج - كلية العلوم - قسم الكيمياء

1

إعجاب
2018-09-29 20:42:37 | 0 | Heterocyclic organic chemistry
Heteocyclic I exam 05-2016
Q.1- Illustrate in equations the following reactions: a) Pyrrole with HCN/HCl. b) Exhaustive methylation of tetrahydropyrrole. c) Furfural with ethanolic KCN. d) Furan with maleic anhydride. e) Thiophene with n-butyl-lithium f) Indole with CHCl3/NaOH. g) Pyridine with methyl bromide. Q.2- a) Write ONE METHOD ONLY for the synthesis of the following: Thiophene – Indole – Coumarone – Thionaphthene إقراء المزيد

2018-09-29 20:40:31 | 0 | Carbohydrates
Carbohydrates exam 05 - 2016
Q.1- a) Explain by equations the synthesis of the following compounds from GLUCOSE: Gluconic acid – Sorbitol – Fructose – Saccharic acid – Arabinose b) Explain the following: (by equations and examples if possible) Invert sugar – Anomers – Epimerization Q.2-a) Give the evidences which led to the cyclic structure of glucose and discuss ONE METHOD for determination of its ... إقراء المزيد

2018-09-29 20:29:07 | 0 | Industrial Organic Chemistry
Nuclear, Dyes and Industrial exam_01-2016
Q1- a) Explain the cleaning action of soap and detergent. b) Illustrate by equations the synthesis of "Aniline" with mechanism, and use it to prepare the following: _i) p,p_-Methylene diphenyl diisocyanate (MDI). ii) Sulfadiazine. Q2-a) Explain by equations the synthesis of "DDT" starting from ethanol. b) "Sodium tripolyphosphate was the first important commercial builder in soaps and detergents". In the ... إقراء المزيد

2018-09-29 20:20:36 | 0 | Petroleum chemistry
Petroleum exam 01-2017
Q1- Explain the following: * SOLVENT treatment of kerosene. * The FLUID catalytic cracking process. * SULPHURIC ACID polymerization process. * The PLATFORMING Q2-Discuss the following: * CARBIDE THEORY which explain the origin of petroleum in nature. * Effect of SULPHUR compounds on gasoline. * HYDRODESULPHURIZATION إقراء المزيد

2018-09-29 20:15:51 | 0 | Polynuclear hydrocarbons
polynuclear exam_05-2017
Q.1- A) Deduce the structure of PHENANTHRENE and confirm it by PSCHORR synthesis. B) Illustrate in equations the following reactions: i) Ozonolysis of diphenyl. ii) 2-Naphthylamine with diazonium salt. iii) Benzaldehyde with ethanolic KCN. iv) 2-Naphthol with nitrous acid. v) Benzil with o-phenylenediamine. vi) Anthracene with excess sulfuric acid. Q.2- A) Explain by equations how can prepare the following from ... إقراء المزيد