guess paper 1. Express the rate of following reaction in terms of disappearance of hydrogen in the reaction. 3H2(g) + N2(g) 2NH3(g) 2. What is peptisation? 3. Write Reimer Tiemann reaction. 4. Why is CO stronger ligand that Cl-. 5. Write structure of 2-(2-Bromophenyl)butane. 6. Complete the reaction C6H6+R COCl 7. Why pentahalides more covalent than trihalides? 8. What is difference between nucleoside and nucleotide? 9. Explain the following- (a) Gattermann Koch
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METALS Lose electrons and form positive cations. NON-METALS gain electrons and form negative anions. IONS Are charges particles. EXMAPLES Atomic Notation and Bohr Diagrams Lewis Dot Diagram Examples Lewis Dot Diagrams of an Negative ION (NON-METAL) Negative ions have 8 valence electrons! Lewis Dot Diagram of an Ionic Compound Lewis Dot Diagrams of an Positive ION (METAL) Positive Ions have no valence electrons! The Octet Rule REMEMBER! All elements want
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Oxidation-Reduction Activity Series Peter Jeschofnig‚ Ph.D. Version 42-0186-00-01 Lab RepoRt assistant This document is not meant to be a substitute for a formal laboratory report. The Lab Report Assistant is simply a summary of the experiment’s questions‚ diagrams if needed‚ and data tables that
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October 13‚ 2012 Needle through a Balloon Pre-Lab Preparations: Purpose: The purpose of this experiment is to see if the balloon pops when pierced with a wooden skewer or a sharp pin. Hypothesis: If we lubricate the skewer with petroleum jelly‚ then it should go through the balloon without popping. Hypothesis for the 2nd part of the Lab: If we cover the side of the balloon with cellophane tape‚ then it will not pop when pierced with the pin. Materials: • Balloons • Long wooden
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Tel: No. 011-6499062 Mob.No. 9811649369 9971218802 POWER SECURITY & ALLIED SERVICES (REGT) SECURITY MEN POWER HOUSE KEEPING BETTER SERVICE IS OUR MOTO 187‚ Prahlad Market‚ Khanpur‚ Devli Road‚ New Delhi-110062 To‚ _______________________ _______________________ _______________________ Sub: Proposal for Security Management: Dear Sir‚ The POWER SECURITY & ALLIED SERVICES takes great pleasure in introducing itself to you‚ having served well over a decade in this
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Have you ever been tired to the point that you gone after that most loved beverage of yours to give you a "pick me up" have you ever pondered what gives you that vitality‚ that causes you to have a feeling that you send your heart on a thrill ride? The response to what makes that reaction is the unrivaled‚ Caffeine. I picked caffeine on the grounds that I‚ for one‚ am dependent on this substance and i use it in my ordinary life through coffee and other such foods. Caffeine (C8H10N4O2) is the
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Chemistry in everyday life : Our entire universe is made up of matter which is constantly changing forms and evolving into other forms of energy. Chemistry is defined as the study or science of this ever changing matter. The other sciences which we study commonly like biology‚ physics and mathematics are all dependent on chemistry and are known as specific studies under the elaborate subject of chemistry. Since there is chemistry seen in biological forms as well as physical states of nature‚ there
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Chemistry has been called the science of what things are. Its intent is the exploration of the nature of the materials that fabricate our physical environment‚ why they hold the different properties that depict them‚ how their atomic structure may be fathomed‚ and how they may be manipulated and changed. Although organic reactions have been conducted by man since the discovery of fire‚ the science of Organic chemistry did not develop until the turn of the eighteenth century‚ mainly in France at
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"Better living through better chemistry" Chemistry affects our lives in many different ways‚ everyday. The air you inhale everyday is an element called hydrogen. Chemistry affects us in good ways and bad ways. So‚ I decided to do it in both points of view. Without chemistry our lives wouldn’t be as easy it is right now but there is a other side to it. Without chemistry we wouldn’t have communication‚ transportation‚ medicine‚ and
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Chemistry Module Six: Thermochemistry and rate Study sheet for the test G.01: Thermo-chemistry I. Temperature and Thermal Energy Temperature is a measure of the average kinetic energy of the particles in a sample of matter. The greater the avg. kinetic energy of the particles in a sample of matter‚ the higher the temperature of that matter. Some temperature scales are Fahrenheit‚ Celsius and Kelvin. Thermal energy is the measure of the total kinetic energy in a sample. And Temperature
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