1. An organic compound X with a molecular formula C2H6O undergoes oxidation with in presence of alkaline KMnO4 to form a compound Y. X on heating in presence of Conc. H2SO4 at 443K gives Z. Which on reaction with H2Oin presence of H2SO4 gives back `X` `Z` reacts with Br2 (aq) and decolorizes it. Identify X‚ Y‚ & Z and write the reactions involved. 2. An organic compound ‘A’ is widely used as a preservative in pickles and has a molecular formula C2H2O2. This compound reacts with ethanol to
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in case of skin contact (irritant‚ permeator)‚ of eye contact (irritant)‚ of ingestion‚ of inhalation. Slightly hazardous in case of skin contact (sensitizer). Dichloromethane (CH2Cl2) 84.93 -96.7 Soluble in water Miscible in acetate‚ alcohol‚ alkane‚ benzene‚ CCl4‚ ether‚ CHCl3 Very hazardous in case of eye contact (irritant)‚ of ingestion‚ of inhalation. Hazardous in case of skin contact (irritant‚ permeator). Inflammation of the eye is characterized by redness‚ watering‚ and itching Sodium
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wastewater Treatment Plant (WWTP or STP) possesses conventional methods like primary treatment‚ secondary treatment and tertiary treatment followed by ozonation method. Later‚ for the river water treatment which contains preozonation‚ flocculation‚ chlorination filtration / aeration‚ adsorption and pH correction processes was done. Recycling of wastewater is a mechanical process‚ which includes purification of wastewater up to the standard in a separate lagoon
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Experiment II. Separation Of a Sample Mixture By Liquid-Liquid Extraction Reading assignment: Techniques in Organic Chemistry 2nd ed pages 75-99. 3rd ed pages 113-140. Topics and Techniques i) identification of solvent layers of two immiscible solvents ii) partioning of a compound between two immiscible solvents and determination of KD iii) liquid-liquid extraction with aqueous acids and bases with organic solvents. iv) use of drying agents Introduction Liquid-liquid extraction is a method
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Main air pollutants and their sources Carbon Monoxide- motor cars‚ cigarettes‚ bush‚ forest and farm fires‚ slow combustion stoves Oxides of nitrogen (NO+NO2)- combustion (vehicles and power stations) Particulates (soot)- combustion (transport and industry)‚ many industrial processes (mining)‚ bush fires‚ farms and forest burn-offs‚ backyard incineration; abets in dust from insulation and pre-1986 fibrous cement board in old buildings and from their demolition Airborne lead- lead smelters (Broken
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and 1375 1465 3100-3000 1700-1000 3150-3050 1000-700 ca. 3300 2900-2800 2800-2700 1680-1600 1600-1400 2250-2100 1740-1720 1725-1705 1725-1700 1750-1730 1700-1640 1810 and 1760 1300-1000 Intensity s m m m s s s m w w m-w m-w m-w s s s s s s s Alkanes -CH3 -CH2Alkenes (stretch) (bend) (bend) (stretch) CHARACTERISTIC INFRARED FREQUENCIES (bend) Aromatic (stretch) (out-of-plane bend) Alkyne Aldehyde C=C C C C=O (stretch) Alkene (stretch) Aromatic (stretch) Alkyne (stretch) Aldehyde
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Chapter 25: Environmental Microbiology Question Type: Multiple Choice 1) Which would not be the habitat for terrestrial species of some microorganisms? a) desert b) tundra c) tropical rain forest d) freshwater lake Answer: d Difficulty: Easy Learning Objective 1: LO 25.1 Explain the concept of ecosystems and how energy flows through them. Section Reference 1: Section 25.1 Fundamentals of Ecology 2. Microbes in the environment can be _____. a) producers b) consumers c) decomposers d) all
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Grignard reagents and are useful in making carbon-carbon bonds and reducing carbonyls. Grignard reagents are any of the numerous organic derivatives of magnesium (Mg)‚ commonly represented by the general formula RMgX (in which R is a hydrocarbon radical: CH3‚ C2H5‚ C6H5‚ etc.; and X is a halogen atom‚ usually chlorine‚ bromine‚ or iodine). They are called Grignard reagents after their discoverer‚ French chemist Victor Grignard‚ who was a corecipient of the 1912 Nobel Prize for Chemistry for this
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that have a group attached that is not easily named as a substituent‚ the benzene ring is often treated as a group to this substituent. The benzene ring attachment is called a phenyl group. The compound is named according to the rules for naming alkanes‚ alkenes and alkynes. Trivia: Phenyl comes from “phene”‚ a European term used during the 1800’s for benzene. Example: CH2 = CH – CH – CH3 3- Phenyl-1-butene Substituted benzene: position and name substituent/s (alphabetical) + benzene
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coal‚ petroleum or natural gas on the location of deposits of the selected fossil fuel in Australia 11 3.3.3 Process and present information from secondary sources and use available evidence to identify safety issues associated with the storage of alkanes. 14 4.2.8 Identify the sources of pollution which accompany the combustion of organic compounds and explain how these can be avoided. 15 Water: 1.2.3 Compare the state‚ percentage and distribution of water in the biosphere‚ lithosphere‚ hydrosphere
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