1 HIGHER SECONDARY MODEL EXAMINATION HSE II Max.marks: 60 CHEMISTRY Time: 2.45 hrs General instructions All questions are compulsory Cool-off time is 15 minutes 1] Defects modify the properties of crystals [4 marks] A] Give differences between Schottky and Frenkel defects [2.0] B] On heating zinc oxide becomes yellow in colour. Why? [1.0 ] C] Alkali metal halides on heating in presence of alkali metal produce characteristic colours.Give reason [1.0] 2] Colligative
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title: PHYSICAL CHEMISTRY Course of study: Foundation in Science Contact Hours: 2 lecture contact hours per week for the duration of 14 weeks. 1 tutorial contact hour per week for the duration of 12 weeks. 2 practical contact hours per week for the duration of 10 weeks. Mode of delivery: Lecture‚ tutorial & experiment Attendance for lectures‚ tutorials and experiments are compulsory for every student. Main Text: Kotz‚ J. C.‚ Treichel‚ P. M.‚ & Townsend‚ J. R. (2012). Chemistry & chemical reactivity
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Ahmed Fun Filled Hands On Science 17 January 2013 Demonstrations in Chemistry Class Chemistry is a class that a lot of college student are afraid of‚ and when I think of chemistry‚ complex equations that don’t benefit come to my mind. The reason is that all I got out of chemistry is those unbeneficial equations‚ for me at least. Also‚ I learned that H2O is water. With all those negative statements‚ I still believe that chemistry is a very important subject to understand the magic of this life and
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Alchemy vs. chemistry Some people think that chemistry is just about mixing things up and experimenting in test tubes and explosions. Actually chemistry studies everything around us and how they change‚ for example it tells what your body is made out of. We study chemistry in biology‚ geology‚ engineering‚ and even physics. Chemistry is the science of matter‚ and how it changes and its chemical reactions‚ it’s also called as the central science ( the main one) because it connects physics with other
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Chemistry 11 Final Examination Review - Answers Part A - True or False. Indicate whether each of the following statements is true or false. Correct the false statements. F 1. The mass of an electron is equal to the mass of a proton. The mass of an electron is less than the mass of a proton. T 2. The mass of a proton is approximately equal to the mass of a neutron. T 3. The atomic number represents the number of protons in a nucleus. T 4. The proton has a mass of approximately
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Tim Bruce The subject that I will be focusing on through the course of this extra credit paper‚ is one about the combination of Aerospace Engineering and Chemistry. I chose this particular topic because of my future life goals. Which include getting a degree in aerospace engineering. I also became interested while researching for this paper in a particular sub topic of the two which is called aerothermochemistry. Aerothermochemistry is the study of gases which takes into account the effect
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Organic chemistry is the study of essentially all substances containing carbon. Organic compounds that contain only carbon and hydrogen are called hydrocarbons. The simplest hydrocarbons are the alkanes which contain only single covalent bonds. Methane is the simplest alkane. It is also the major component of natural gas. Methane contains only 1 carbon in the molecular formula and the structural formula. There is ethane which is 2 carbons‚ propane that is 3‚ butane which is 4‚ pentane which is 5
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the state‚ percentage and distribution of water in the biosphere‚ lithosphere‚ hydrosphere and atmosphere. 3 1.2.4 Outline the significance of the different states of water on the Earth in terms of water as: 4 1. A constituent of cells and its role as both a solvent and a raw material in metabolism 4 2. A habitat in which temperature extremes are less than nearby terrestrial habitats 4 3. An agent of weathering of rocks both as liquid and solid 5 4. A natural resource for humans and
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After awhile those classes seemed to mesh together‚ the difficulty of the class wasn’t there anymore‚ I wasn’t stimulated with new knowledge. It was pure monotony of the state regulated standard that pushed me to a higher and more distinct class. AP Chemistry was the catalyst for my intellectual development and my new found quest for knowledge. From the first day‚ I collided with my syllabus‚ it was frightening yet exciting at the same time because it was the academic challenge I was looking for. Going
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IMPORTANT TOPICS OF CHEMISTRY 2009 Chap No.1 Q.1- Define chemistry & branches of chemistry any three? Q.2-Lrean about history of chemistry for short question and fill in the blanks? Q.3 what is scientific method? Define hypothesis and theory? CHAP NO.2 Q.1-Learns about any three laws of chemical combination only statement and example? Q.2-Define chemical reaction and types of chemical reaction with one example for each with the help of chemical equation? Q.3-Define MOLE‚ Atomic no
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