SUMMARY OF ORGANIC REACTIONS SECTION 1 - ALIPHATIC Aldehydes and ketones |Type of reaction |Mechanism | |1. oxidation (aldehydes only): aldehyde ( carboxylic acid |n/a | | | | |reagents: potassium
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A small amount of the unknown (approximately the tip of the spatula was used for all the pigments) was added into each clean dry test tube. For the first test 1 mL of 3 M of HNO3 was added. As soon as the acid came into with the solid‚ the pigment was observed to dissolve while also turning the solution into a pale clear colour. The same amount was used for the HCl reagent. As soon as the acid touched the pigment it yielded in a clear solution (solid dissolved after a few shakes). When the KI was
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CHEMISTRY (Theory) Time allowed : 3 hours General Instructions: (i) All questions are compulsory. Maximum Marks : 70 (ii) Marks for each question are indicated against it. (iii) Question numbers 1 to 8 are very short-answer questions and carry 1 mark each. (iv) Question numbers 9 to 18 are short-answer questions and carry 2 marks each. (v) Question numbers 19 to 27 are also short-answer questions and carry 3 marks each. (vi) Question numbers 28 to 30 are long-answer questions and carry 5 marks
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__________Abstract- The synthesis of adipic acid has been a growing topic of discussion due to the harmful impact it has on the environment. To aid in elucidating an environmentally friendly approach‚ the synthesis of adipic acid via a greener oxidation reaction and a recyclable catalyst will be examined. This article will discuss how manipulating equivalents of 30% hydrogen peroxide (H2O2) affect the product yield. Results show product yield was affected when changing H2O2 equivalents. Equivalent
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Chemical Formulas Review: Nomenclature and Formula Writing Naming Simple Compounds There are four naming systems you should familiarize yourself with to succeed on the SAT II Chemistry exam. The trick is recognizing which naming system to use. Here are the guidelines: * If the compound starts with H‚ it is an acid. Use the naming acids rules. * If the compound starts with C and contains quite a few H’s and perhaps some O’s‚ it is organic. Use the naming organic compounds rules. *
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N09/4/CHEMI/HPM/ENG/TZ0/XX+ 88096101 CHEMISTRY HIgHER lEvEl PaPER 1 Tuesday 3 November 2009 (afternoon) 1 hour INSTRUCTIONS TO CANDIDATES • Do not open this examination paper until instructed to do so. • Answer all the questions. • For each question‚ choose the answer you consider to be the best and indicate your choice on the answer sheet provided. • The periodic table is provided for reference on page 2 of this examination paper. 8809-6101 16 pages © International Baccalaureate
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Chemistry GENERAL CHEMISTRY: Atomic Structure and elementary quantum mechanics: Blackbody radiation‚ Planck’s radiation law‚ photoelectric effect‚ Compton Effect‚ de Broglie’s hypothesis‚ Heisenberg’s uncertainty principle. Postulates of quantum mechanics‚ Schrodinger wave equation and a particle in a box‚ energy levels‚ wave functions and probability densities‚ Schrodinger wave equation for H-atom‚ Separation of variables‚ Radial and angular functions‚ hydrogen like wave functions‚ quantum numbers
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aluminium. In the chemical compounds of the elements shown as group 3‚ above‚ the predominant oxidation state is +3. Properties Chemical characteristics Scandium is a soft metal with a silvery appearance. It develops a slightly yellowish or pinkish cast when oxidized by air. It is susceptible to weathering and dissolves slowly in most dilute acids. It does not react with a 1:1 mixture of nitric acid (HNO3) and 48% hydrofluoric acid (HF)‚ possibly due to the formation of an impermeable passive layer
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glycosides‚ chlorogenic acid‚ tannins‚ mannitol. • Constituent – Mannitol • Uses: • Mild laxative • Osmotic diuretic • Uses: • Mild laxative • Osmotic diuretic Drugs containing Acids‚ Alcohols and Esters • Sumatra Benzoin (Gum Benjamin) (Fam. Styracacea) • Styrax benzoin • S. paralleloneurus • Constituents •
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www.kalvisolai.com 5 Mark Compulsory Problems with Solution 1 +2 CHEMISTRY Q. 70 Compulsory Problems with Solution Problems are solved in easiest way (As per Government Answer Key) www.kalvisolai.com 5 Mark Compulsory Problems with Solution 2 SALIENT FEATURES Dear Students ❆ Q.No: 70 is asked as compulsory problem in Govt Exam. ❆ Two problems to be answered out of four problems. ❆ To simplify the problem‚ hints and expected compounds related to molecular formula‚ general formula are
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