ICSE X | CHEMISTRY Board Paper – 2015 ICSE Board Class X Chemistry Board Paper – 2015 Time: 2 hrs Max. Marks: 80 Answers to this Paper must be written on the paper provided separately. You will not be allowed 10 write during the first 15 minutes. This time is to be spent in reading the Question Paper. The time given at the head of this paper is the time allowed for writing the answers. Section I is compulsory. Attempt any four questions from section II. The intended marks for questions or parts
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A carbohydrate is an organic compound that consists only of carbon‚ hydrogen‚ and oxygen‚ usually with a hydrogen:oxygen atom ratio of 2:1 (as in water); in other words‚ with the empirical formula Cm(H2O)n. The carbohydrates (saccharides) are divided into four chemical groupings: monosaccharides‚ disaccharides‚ oligosaccharides‚ and polysaccharides. In general‚ the monosaccharides and disaccharides‚ which are smaller (lower molecular weight) carbohydrates‚ are commonly referred to as sugars.
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Describe the role of the citric acid cycle as a central metabolic mechanism. Explain what happens to the cells’ abilities to oxidize acetyl CoA when intermediates of the cycle are drained off for amino acid biosynthesis. Glucose is a source of energy that is metabolized into glycolysis to pyruvate yielding ATP. To become more efficient‚ pyruvate must be oxidized into carbon dioxide and water. This combustion of carbon dioxide and water to generate ATP is called cellular respiration (Tymoczko‚
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Drug Development and Industrial Pharmacy‚ 2011; 37(5): 613–617 © 2011 Informa Healthcare USA‚ Inc. ISSN 0363-9045 print/ISSN 1520-5762 online DOI: 10.3109/03639045.2010.534098 ORIGINAL ARTICLE Quantification of dermal and transdermal delivery of meloxicam gels in rabbits Mayurkumar Patel1‚2‚ Abhay Joshi1‚ Hana Hassanzadeth1‚3‚ Ravi Juluru1‚ and Grazia Stagni1 1 Division of Pharmaceutical Sciences‚ Arnold and Marie Schwartz College of Pharmacy and Health Sciences‚ Long Island University
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Name: Keziah V. Cuyom Section: 9 - Malaya Topic: Types of Chemical Reaction A chemical reaction is a process that is usually characterized by a chemical change in which the starting materials (reactants) are different from the products. Chemical reactions tend to involve the motion of electrons‚ leading to the formation and breaking of chemical bonds. There are several different types of chemical reactions and more than one way of classifying them. Here are some common reaction types. However‚ if
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reactions can be taking place at significant - even high - rates‚ but since these rates are equal‚ no change in concentration is observed over time. Let us once again use the hypothetical example of a simple‚ reversible reaction‚ A = B (such as an isomerization) to show the approach to
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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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urologic procedure. For women this is because the urethra is shorter and comes into contact with bacteria from the skin‚ anus‚ and the vagina. Kidney stones as mentioned before‚ comes in three types. Calcium stones made up calcium oxalate‚ phosphate‚ or maleate are the most common and are easy to keep away from when one stays away from food rich oxalate rich food‚ so sorry to those that love gorge on the potato chips and chocolate. The second Uric Acid are mostly found in men‚ to those suffering from gout
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respectively (Morgan‚ et. al‚ 2011). As part of cellular respiration‚ the Krebs cycle is a series of eight steps‚ each catalyzed by a specific enzyme. One enzyme used is succinate dehydrogenase which catalyzes the conversion of succinate to fumarate‚ thus loses hydrogen ions and electrons for use in generating ATP. It is important to know what inhibitors affect the activity of this enzyme which eventually will affect the whole process of cellular respiration. In this experiment‚ 1M Malonate(
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Kayla Adkins Forensic Chemistry Exam 2 I have been honest and observed no dishonesty. 1. In specific detail‚ describe a published procedure for the definitive identification of Heroin utilizing gas chromatography-mass spectroscopy (GCMS). Heroin is a white crystalline powder with no odor and a bitter taste. It is a derivative of morphine in that the –OH (hydroxyl group) is replaced by an acetyl group‚ -OCOCH3 and has a molecular formula is C21H23NO5 with a molecular weight of 369.42
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