by : Directorate of Education‚ Delhi SOME IMPORTANT REASONING BASED QUESTIONS OF ORGANIC CHEMISTRY 1. Chlorobenzene is less reactive than chloromethane. Ans. In chlorobenzene‚ each carbon atom of benzenering is sp2 hyridised and is electron withdrawing. Chlorine atom donates a lone pair of electron and acquire positive charge. The negative charge is delocalised on ortho and para position by resonance. C-Cl bond acquires partial double bond character and is 169 pm as compared to 17.0 pm in chloromethane
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Although‚ White used characters such as‚ Fern and Charlotte to represent the good human instincts like protective and maternal but there are also bad instincts represented like selfishness by Templeton. Throughout‚ the novel Templeton plays that rough‚ anti-social character who is only thinking about how to take care of himself. Templeton is the perfect example of selfishness as a human instinct; he only does thinks that will benefit him. In the scene where Wilbur ask Templeton to play with him and
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Welfare Welfare‚ money given to families in need‚ is not free money. It benefits many people who have a low income or no means of income at all. The benefits available are based on the level of money earned for different sized families and in different states. Welfare is also not to be provided in a biased manner to anyone who applies for it. A lot of people in today’s society depend on welfare. Welfare in the United States Governments serve the financially challenged through about 60 public assistance
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Ethics Creature Welfare is the position that animals should be treated humanely. This includes proper housing‚ nutrition‚ disease prevention and treatment‚ responsible care‚ proper handling‚ and humane euthanasia. Creature Rights is the position that creatures should not be exploited. Some believe that creatures should not be used for food‚ clothing‚ entertainment‚ medical research‚ or product testing. This includes the use of animals in zoos‚ circuses‚ rodeos‚ and even as pets. They believe
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Chemistry Revision F331 Isotopes - atoms with the same atomic number‚ but different mass numbers 131I - radioactive tracer for thyroid. 99Tc for tumours. Radioisotopes - gamma emitters & short half life - long enough to detect‚ but not long enough for damage. Beta particles emitters are more useful than alpha particle emitters because they penetrate more and so are more easily detected. Also‚ less damaging. The half life is the time taken for half the isotope to decay Mass left = initial
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EMPLOYEE WELFARE FACILITIES AT HLL INTRODUCTION TO THE TOPIC Management is the efficient accomplishment of desired results in a given time frame‚ budget‚ environment through group efforts and involves the process of planning‚ organizing‚ staffing‚ leading‚ controlling‚ coordinating material and human resources
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I chose Social welfare as my major because as a young leader in the Army I gained great satisfaction in helping soldiers and their families better adapt to military life by introducing them to all the social programs the army had to offer. Programs such as the army community service which helps young soldiers take care of their family’s immediate needs by helping the soldier’s family with life essentials such as food and clothing. Also I have taken great pride in assisting soldiers in acquiring emergency
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Bibliography: Heyworth‚ Rex M Dr‚ and J G R Briggs. Chemistry Insights. Singapore: Pearson Education South East Asia‚ 2007 http://www.google.com http://www.ausetute.com.au/elecysis.html http://www.nmsea.org/Curriculhttp://www.nmsea.org/Curriculum/7_12/electrolysis/electrolysis.htmum/7_12/electrolysis/electrolysis
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Chemistry 200 Exam 1 Review Problems 1. Calculate the number of atoms in 10.0 grams of Fe. 2. Give the mass number‚ #protons‚ #neutrons and #electrons for the isotope strontium-88. 3. Calculate the number of moles of carbon in 50.0 g of benzene C6H6 4. A substance is found to be 38.7 % C‚ 9.7 % H and 51.6 % O by mass. Its molar mass is 62.1 g/mole. What is its molecular formula? 5. Name the following: a) Ca(OH)2 b) KCN c) HClO4(aq) d) FeSO4 e) Na2O f) SF6 g)
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References: 1. Dr. G. Maguire‚ 2009‚ Inorganic Chemistry (Chem. 210) Practical Manual‚ UKZN Durban. 2. Werner‚ A. “Über strukturisomere Salze der Rhodanwasserstoffsäure und der salpetrigen Säure” Berichte der deutschen chemischen Gesellschaft 1907‚ volume 40‚ 765-788. DOI: 10.1002/cber.190704001117
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