Final Year Project Progress Report Title: Fat Content Analysis and Characterization of Food Class and Group No. : AS114103/2A1 Student Names : Chan Hoi Ching (120586347) : Chan Wai Yi (120464356) : Cheung Kit Cheung(120552694) : Lam Chi Ching (120224281) : Lam Pik Shan (120181829)
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SYLLABUS CHEMISTRY (043) CLASS-XII – (2012-13) Annexure - ‘ I ’ S.No. 1. 2. 3. 4. Type of Question Long Answers (LA) Short Answers-II (SA II) Short Answers-I (SA-I) Very Short Answer (VSA) Total Marks for No. of Total Marks each Question Questions 5 3 2 1 3 9 10 08 30 15 27 20 08 70 Weightage 4 5 5 5 4 3 8 5 3 4 4 6 4 4 3 3 70 Total: S.No. UNIT 1. 2. 3. 4. 5. 6. 7. 8. 9. 10. 11. 12. 13. 14. 15. 16. Solid State Solutions Electrochemistry Chemical Kinetics Surface Chemistry General Principles
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towards nucleophilic substitution reaction? ( 1 mark ) (a) C6H5Cl (b) CH2=CHCl (c) ClCH2CH=CH2 (d) CH3CH=CHCl (Q.7) The molecule with the highest dipole moment is: ( 1 mark ) (a) CH3Cl (b) CH2Cl2 (c) CHCl3 (d) CCl4 (Q.9) What is added to chloroform to prevent to form phosgene gas: ( 1 mark ) (a) CH3COCH3 (b) C2H5OH (c) CH3COOH (d) CH3OH (Q.10) The most reactive nucleophile among the following is: ( 1 mark ) (a) CH3O- (b) C6H5O- (c) (CH3)2CHO- (d) (CH3)3CO- (Q.11) The correct order
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........................ 406 16.2 TLC Techniques......................................................................................... 407 16.2.1 Basic Principles for Flavonoid Separations ................................. 407 16.2.2 Sample Preparation ...................................................................... 409 16.2.3 Separation of Flavonoid Aglycones and Glycosides on Silica Gel and Reversed-Phase TLC....................................... 410 16.2.4 Use of Mathematical Methods
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and spleen (Javed et al.‚ 2000). The antioxidant activity of Zaleya portulacastrum has been reported earlier (Kumar et al.‚ 2005).Literature survey of genus revealed phytochemical constituent trianthemine‚ trianthenol and Ecdysteroid reported from chloroform extract of Zaleya portulacastrum along with flavonoids and phytoserolines and ketone (Shivhare et al.‚2012). Many species of this genus have been reported to act as folk medicine for treating bronchial diseases‚ cathartic‚ irritant‚ fever‚ constipation
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Oxidation Reduction Titrations: The Indirect Iodimetric Analysis Ascorbic Acid Unknown Number 69 I: Purpose: To determine the percent weight of Ascorbic Acid in unknown sample. This was to be done by the means of an indirect iodimetric analysis. In an iodometric analysis‚ the oxidizing agent can be determined by a different means than titrating directly with standard iodide‚ because a high concentration of I- is needed to form the I3- complex. In this type of analysis‚ excess iodide is added to
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3). Solubility Profile of Ketoconazole different solvents indicated that the drug was freely soluble in methanol‚ methylene chloride and insoluble in water‚ ether and slightly soluble in PBS (pH 7.4)‚ dichloromethane and very slightly soluble in chloroform‚ alcohol etc. Partition coefficient of the drug was found to be 5.057 in n-octanol: Phosphate buffer solution (pH 7.4) suggesting the drug to be lipophilic in nature. Standard curves of Ketoconazole were prepared in different fluids i.e. PBS
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following conversions: (i) Methyl bromide to acetone. (ii) Benzyl chloride to 2-phenyl acetic acid. Q.12 How will you distinguish between the following pairs of compounds: (i) Chloroform and carbon tetra chloride. (ii) Benzyl alcohol and chlorobenzene. Q.13 For a chemical reaction variation in rate with conc. is shown below: Rate
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Preparation of buffer solutions 1. Activation buffer (Mixed Phosphate Buffer‚ pH 5.5) Solution 1: An accurately weighed quantity of 1.61 g of potassium dihydrogen phosphate was dissolved in sufficient deionized water to produce 100 mL of solution. Solution 2: An accurately weighed quantity of 35.81 g of disodium hydrogen phosphate was dissolved in sufficient volume of deionized water to produce 100 mL. Accurately measured volume of 96.4 mL of solution 1 was mixed with 3.6 mL of solution 2 to get
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quantities of a chemical called chloroform. Before the war began‚ surgeons used to obtain a specific dosage of chloroform‚ soak a cloth into it‚ and then proceed to use the saturated cloth to cover the patient’s mouth and nose. This would then make the patient fall into unconsciousness during the time the surgeon performed on the invalid. However‚ at the start of the Civil War‚ doctors and surgeons found that this "chloroform-cloth" plan backfired quickly. The supply of chloroform would rapidly fall because
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