Which of the following is vinyl halide? (a) CH2CL2 (b) CH2= CH-Cl (c) CH = C-Cl (d) 6) What is B in R-OH + PX5 R-X +B+ HX? (a) HPOX3 (b) H3PO3 (c) POX3 (d) H3PO2 7) Which catalyst is used in preparation of bromobenzene by bromination of benzene? (a)FeBr3 (b) HBr (c) AlBr3 (d) Br2 8) By which name the reaction CH3 - Br + Ag- F CH3F + AgBr is known? (a) Grignard (b) Wurtz (c) Fitting (d) Swartz 9) What are nucleophilic reagents according to Lewis theory
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Clays are one of the important natural materials‚ which have been examined for catalytic applications. Clays are characterized by a layered structure and hence they are slippery when wet. They are broadly classified as cationic or smectite type (having layer lattice structure in which two-dimensional oxyanions are separated by layers of hydrated cations) and anionic or brucite type (in which the charge on the layer and the gallery ion is reversed complimentary to smectite type). Anionic clays are
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UNIVERSITI TEKNOLOGI MARA COURSE INFORMATION Confidential Code Course Level Credit Hours Contact Hours : : : : : CHM 556 Organic Chemistry II Degree 4 3 hr (Lecture) 3 hr (Practical) 3 Core CHM 456 Part Course Status Pre-requisite : : : Course Outcomes : Upon completion of this course‚ students should be able to: 1. Determine functional groups present in organic compounds using Infrared Spectroscopy and interpret Nuclear Magnetic Resonance spectra and relate the information to structural
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the starting alkene‚ various stereoisomers will result. In some cases‚ a racemic mixture of products is formed‚ other times a meso compound is produced. The Fischer projections shown above are two possible stereoisomers that could form in the bromination reaction that you will perform. One is the result of a syn addition‚ the other is the result of an anti addition mode. Note that each would form as a racemic mixture‚ (+). You are to determine‚ based on the melting point of your product‚ which
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B) is a deactivator and an o‚p-director. C) is an activator and a m-director. D) is an activator and an o‚p-director. E) none of the above Answer: B 32) Which of the following is an intermediate in the bromination of toluene? A) 13 B) C) D) Answer: B 33) Provide the major organic product of the following reaction. Answer: 14 34) Provide the major organic product which results when PhCHOHCH3 is treated with a chromate (PCC- strong oxidant). Answer:
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kills someone in the U.S. Half the deaths in the U.S. population die by heart disease. Get tightness in the throat. Cholesterol is most deadly. Smoking hardens the arteries. High cholesterol equals high blood pressure. In 1971 only family members of the patience being studied were allowed in on the study. Cholesterol is a normal ingredient in the body. There are two types of cholesterol HDL which is good‚ LDL which is bad. Important dates: 1948(this is when the studies started)‚ 1957(anagrams were invented)
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muscular arteries Characteristics: endothelial dysfunction vascular inflammation buildup of lipids‚ cholesterol‚ calcium and cellular debris within the intima of the blood vessel wall. The build up results in atheroma (plaque formation). It is a fatty deposit in the intima of an artery‚ resulting from atherosclerosis. Atheroma/Plaque is made up of: fatty substances Cholesterol Waste products from cells Calcium Fibrin 2. Atherosclerosis develops when the normally smooth
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Preparation of Bromotriphenylmethane Abstract The structure of a major component of star anise oil was derived by analyzing its IR spectroscopy melting point of after oxidation and purification. From the evidence obtained‚ it was concluded that the exact structured should be p-methoxybenzoic acid. Introduction The purpose of this experiment is to determine the structure of the major component of star anise oil. It is already known that this component has a molecular formula C10H12O. This
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Hypercholesterolemia is a condition characterized by very high levels of cholesterol in the blood. Cholesterol is a waxy‚ fat-like substance that is produced in the body and obtained from foods that come from animals (particularly egg yolks‚ meat‚ poultry‚ fish‚ and dairy products). The body needs this substance to build cell membranes‚ make certain hormones‚ and produce compounds that aid in fat digestion. Too much cholesterol‚ however‚ increases a person’s risk of developing heart disease. People
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flavorful concentrate that can be used in a variety of dishes. Cholesterol is a soft‚ waxy type of fat or sterol produced by the liver for numerous metabolic functions. High Cholesterol levels have a long association with many diseases‚ particularly Cardiovascular Disease (CVD). High-cholesterol issues arise when LDL is high and HDL is low (Strandberg‚ T.‚ 1991). Blood Cholesterol level on the other hand is the amounts and forms of cholesterol that are present in the bloodstream ‚ usually measured after
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