undergoes changes when the pH is manipulated of the solution. PNP is also an acid/ base indicator. The compounded starts off as internal conjugated ring with the hydroxyl group and the nitro group single bonded to the aromatic ring. This occurs at the pH of 5. At this point the aromatic compound is colorless and is in the ultraviolet range. However‚ as the pH begins to increase the hydroxyl group deprotonates‚ leaving the oxygen with a negative 1 charge. The molecule compensates for the negative charge
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third σ-bond with a hydrogen atom. The 2p orbital on each atom is available for π-bonding. Interaction between the p orbitals on the six carbon atoms forms a conjugated system of π-electrons. Molecules with this bonding arrangement are called aromatic molecules. For convenience‚ we usually draw benzene as one of its resonance forms. The shape of benzene Benzene is a planar regular hexagon‚ with bond angles of 120°. This is easily explained. It is a regular hexagon because all the bonds
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0 PANJAB UNIVERSITY CHANDIGARH- 160 014 (INDIA) (Estted. under the Panjab University Act VII of 1947-enacted by the Govt. of India) FACULTY OF SCIENCE SYLLABI FOR M.Sc. (TWO YEAR COURSE ) IN CHEMISTRY 1st & 2nd YEAR( Semester System) EXAMINATIONS 2013-2014 --:O:-- 1 OUTLINES OF TESTS‚ SYLLABI AND COURSES OF READING FOR M.Sc. FIRST YEAR (SEMESTER-I) EXAMINATION OF 2013 OBJECTIVE OF THE COURSE To teach the fundamental concepts of Chemistry and their applications. The syllabus pertaining
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native to Europe and southwestern to central Asia where it is thought to have originated. The leaves are heart-shaped‚ toothed‚ opposite and covered with fine downy hairs especially on the under sides giving the whole plant a grayish green appearance. They have an aromatic mint-like flavor Chervil although many people may not be familiar with chervil‚ it has been around for a long time. Aristophanes‚ a playwright of Ancient Greece‚. Chervil is best used fresh. The lemon-anise flavor of chervil is lost with
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their age. For the treatment that is provided‚ it has divided into 6 groups‚ they are hot therapies‚ cold therapies‚ water therapies‚ touch therapies‚ relaxation therapies and exercises. First‚ for the hot therapies‚ its include sauna‚ steam‚ aromatic herbal bath‚ dry float‚ Rasul‚ etc. Second‚ for the cold therapies‚ its include ice fountain and frigidarium‚ etc. Third‚ for the water therapies‚ it means use of kind water for treatment‚ such as drinking water. Then‚ for the touch therapies‚
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shaking | No colour change with the addition of aqueous KMnO4 | Presence of Alkane | 2ml of cyclohexene + 2 dropsKMnO4 + shaking | Colour changes to colourless with brown precipitate | Presence of Alkene | Reaction with potassium permanganate and aromatic compound Test | Observation | Inference | 1ml of
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Flat Parsley or garden parsley (Petroselinum crispum) is a species of Petroselinum in the family Apiaceae‚ native to the centralMediterranean region (southern Italy‚ Algeria‚ and Tunisia)‚ naturalized elsewhere in Europe‚ and widely cultivated as an herb‚ a spice‚ and a vegetable. Where it grows as a biennial‚ in the first year‚ it forms a rosette of tripinnate leaves 10–25 cm long with numerous 1–3 cm leaflets‚ and ataproot used as a food store over the winter. Parsley is widely used
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Luya or Ginger is widely distributed in the Philippines. It has a very aromatic rootstocks that contains active constituents like zingerone and shogaols that are responsible for pungent properties of ginger. But mostly of the therapeutic use of ginger are found on its rhizome. Gingerol is one of the active constituent that exert its antimicrobial effect. (Philippine Medicinal Plant 2014) Acne vulgaris is a common‚ chronic‚ multifactorial‚ polymorphic‚ inflammatory‚ non-infectious disease involving
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leaves is used for stomach upsets and indigestion‚ headache. INTRODUCTION Oregano (Scientific name: Origanum vulgare) is also known as Wild Marjoram‚ Mountain Mint‚ Origanum‚ Wintersweet and Winter Marjoram. This erectly spreading plant has strong aromatic characteristics‚ with leaves and stems that are fleshy. The leaves of oregano are heart-shaped‚ with toothed edges‚ and which‚ grow for up to 9 meters in length. In other countries‚ the plant is primarily used as a culinary ingredient. However‚ in
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CHEMISTRY ISU: REFINEMENT OF CRUDE OIL My ISU will focus on Petroleum‚ a complex mixture of hydrocarbons that occurs in the Earth in liquid‚ gaseous‚ or solid forms. The term is usually restricted to the liquid form‚ commonly called crude oil‚ but as a technical term it also includes natural gas and the viscous or solid form known as bitumen. In its liquid and gaseous states‚ it is also known as Oil‚ or Crude Oil. Italicized are segments from my ISU or introductions to the planned topics.
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