permanganate to the solution that changed color in the previous step. Record how many drops were added until the purple color of the ion no longer changed. 6. Observe color changes when sodium iodide solution is reacted with chlorine water and bromine water (separately). 7. Observe color changes when sodium bromide solution is reacted with chlorine water and iodine solution (separately). 8. Observe what happens when 3M sulfuric acid and potassium permanganate are added to hydrogen peroxide
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INORGANIC CHEMISTRY 1 Lab Report on Oxidation & Reduction I. Metal-Metal Ion Displacement II. Halogen Displacement Reactions INTRODUCTION A series of experiments had been conducted to determine the order of displacement strengths of the metals and halogen chosen for the experiments. A displacement reaction is a reaction in which one element(metal or non-metal) displaces another element(metal or non-metal) from its salt solution. In the displacement reaction of metals‚ the more
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classes namely: Saturated hydrocarbons and unsaturated hydrocarbons. Saturated hydrocarbons are the simplest type of organic compounds. They are hydrocarbons in which all carbon- carbon bonds are single bonds. An example of a saturated hydrocarbon is an alkane. Unsaturated hydrocarbons are hydrocarbons that contain one or more carbon-carbon multiple bonds like double bonds‚ triple bonds‚ or both. Saturated and Unsaturated hydrocarbons have similar physical properties‚ but their chemical properties are different
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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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Study material CHEMISTRY CLASS: XII KENDRIYA VIDYALAYA SANGATHAN LUCKNOW R E G I O N 2009-2010 Study Material Class XII -Chemistry SHRI RANGLAL JAMUDA IAS‚COMMISSIONER CHIEF Patron KENDRIYA VIDYALAYA SANGTHAN NEW DEHLI SHRI M.S Chauhan Asst. Commissioner Patron Kendriya Vidyalaya Sangthan Lucknow Region SHRI S.S. Rawat Guidance Smt. A.N Siddiqui (Education officer) (Education officer) SHrI K.‚M. Bhatnagar (Education officer) Co-ordinator SHRI. T. Singh Principal K.V. No. 2
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flow allows them to conform to the shape of their containers. Figure 13.5 Both liquids and gases can flow. The liquid on the left is colored water. The gas on the right is bromine vapor. If a gas is denser than air‚ it can be poured from one container into another. These pictures were taken in a fume hood because bromine is both toxic and corrosive. 2. Figure 13.6a eventually moves into the air. The conversion of a liquid to a gas or vapor is called vaporization. When such a conversion occurs
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planet 6. Atomic mass unit—also known as Dalton (symbol: Da) standard unit for measuring or indicating mass on an atomic or molecular scale. 5. Complete the following table: Isotope Atomic No. Mass No. No. of Protons No. of Neutrons No. of Electrons Bromine-81 35 81 35 45 35 Boron-11 5 10.811 5 6 5 Cl 17 35.4527 17 18 17 52Cr 24 52 24 28 24 Ni-60 58 58.6934 28 31 28 Sr-90 38 87.62 38 50 38 Lead-206 82 207.2 82 125 82 6. Explain how ozone is formed in the troposphere. Ozone production
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what is the identity of the element x in the following ions? what are the likely ground-state electron configurations of the following anions N3-: 1s2 2s2 2p6 Se2-: 1s2 2s2 2p6 3s2 3p6 4s2 3d10 5s2 4d4 Identify the element whose 2+ ions has the ground state electron configuration [Ar] 3d^10 Zinc Which has the smaller second ionization energy‚ K or Ca? CaThree atoms have the following electron configuration. a) 1s2 2s2 2p6 3s2 3p3 b) 1s2 2s2 2p6 3s2 3p6 c) 1s2 2s2 2p6 3s2 3p6 4s2
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Experiment 39 Oxidation – Reduction Titrations II : Analysis of Bleach A. Standardization of 0.05 M Na2S2O3 Solution KIO3 concentration 0.01 M Volume of KIO3 Trial #1 Trial #2 Final burette reading 15.01 mL 30.00 mL Initial burette reading 0.00 mL 15.01 mL Milliliters of KIO3 used 15.01 mL 14.99 mL Volume of Na2S2O3 Trial #1 Trial #2 Final burette reading 13.40 mL 25.78 mL Initial burette reading 0.03 mL 13.37 mL Milliliters of Na2S2O3 used
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in case of skin contact (irritant‚ permeator)‚ of eye contact (irritant)‚ of ingestion‚ of inhalation. Slightly hazardous in case of skin contact (sensitizer). Dichloromethane (CH2Cl2) 84.93 -96.7 Soluble in water Miscible in acetate‚ alcohol‚ alkane‚ benzene‚ CCl4‚ ether‚ CHCl3 Very hazardous in case of eye contact (irritant)‚ of ingestion‚ of inhalation. Hazardous in case of skin contact (irritant‚ permeator). Inflammation of the eye is characterized by redness‚ watering‚ and itching Sodium
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