which is made by a mixture of Antimony Trisulphide‚ Potassium Chloride and Red Phosphorous was developed around 200 years ago. Could have man invented the safety match if he hadn’t had the knowledge of Chemistry? Fertilizers such as Urea‚ Ammonium Sulphate‚ Super Phosphate‚ Potash and NPK‚ pesticides and weedicides which play important roles in agriculture have been invented only due to the knowledge man had in Chemistry. We wouldn’t have
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which can give colours either directly or after addition of some other chemicals. As stated by the Beer-Lambert Law - The amount of light radiation absorbed by a compound is directly related to the concentration of the compound. Equipment Copper Sulphate 1M solution Sulphuric Acid 0.5 M solution Volumetric Flasks 100 ml‚ 50 ml‚ 20ml Pipettes 25 ml‚ 10 ml Spectrophotometer Safety Equipment Enclosed footwear Laboratory coat Safety glasses Rubber gloves Method 1. Prepare 100ml of 0.250 M
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M/10 NAOH using universal indicator. 3) To determine the melting point of a given solid substance. 4) To determine the boiling point of a given liquid substance 5) To prepare crystal of potash alum 6) To prepare crystal of copper sulphate 1. The Living World 1. Study of parts and working of 2. Biological Classification microscope 3.. Plant Kingdom 2. Identifying plant and animal 4. Animal Kingdom specimens 5. Morphology of Flowering Plants 3.
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INTRODUCTION PROFILE OF NATIONAL FERILIZERS LIMITED NFL‚ incorporated in 1974 is India ’s largest Central Public Sector Enterprise in Fertilizers Sector with a turnover of over Rs. 7300 cores and an overall annual installed capacity of 32.31 lakh tones of Urea. NFL has five Urea plants located at Nangal & Bathinda in Punjab‚ Panipat in Haryana and Vijaipur I & II plants in Madhya Pradesh. Apart from producing Urea‚ NFL is also engaged in manufacturing & marketing of Industrial products‚ trading
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pungent smelling gas (Y) on heating with NaOH soluion. (Y) turns red litmus paper blue and forms a dense white fumes while a glass rod dipped in conc. HCl is shown over it. Then compound (X) is (a) NH4NO3 (b) NH4NO2 (c) NaNO2 (d) NH4Br 6. Cupric sulphate solution reacts with potassium ferrocyanide solution to give a chocolate brown precipitate. The formula of the precipitate and the name of the reaction respectively are (a) Cu2[Fe(CN)6]‚ redox (b) Cu3[Fe(CN)6]2‚ non-redox (c) Cu2[Fe(CN)6]‚
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Before Hoover Dam After By- Balaji.T.K‚ CE02B011 CONTENTS No Description Page no 1. Hoover dam an Introduction 1 2. Requirements posed by structural design 2 3. Requirements posed by other details 6 4. Type of Concrete 7 5. Guidelines for Mix design 9 6. Fabrication and Installation 10 7. Formwork 11 8. Cooling of concrete 12 9. Temperature control of Mass Concrete 12 10. Quality Assurance 13 11. Bibliography 14 Hoover Dam- an Introduction! It still stands tall as an engineering marvel
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Chemicals in medicines Rakesh Mohan Hallen The words medicine’ and ’drug’ are often used in our country to mean the same substances: any substance‚ manufactured artificially‚ which can help recovery from sickness‚ relieve symptoms or modify a natural process in the body. A medicine is often a mixture of several chemical compounds. Even if it has only one active component compound often other substances are used as fillers or binders to give it bulk. Chemistry‚ the science related to chemical substances
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Decolorization of Crystal violet dye by Aeromonas hydrophila isolated from textile wastewater Sujata Mani and Ram Naresh Bharagava* Laboratory of Bioremediation and Metagenomics Research (LBMR) Department of Environmental Microbiology (DEM)‚ School for Environmental Sciences (SES) Babasaheb Bhimrao Ambedkar University (A Central University) Vidya Vihar‚ Raebareli Road‚ Lucknow - 226 025 (U.P.)‚ India *Corresponding Author: Dr. R. N. Bharagava Tel.: (+91) 522-2998718; Fax: (+91)
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EXPERIMENT 2: SYNTHESIS OF ORANGE II (2-NAFTHOL ORANGE OBJECTIVE 1. To produce dye based to the coupling of diazonium. 2. To understand the characteristic of dye orange II. INTRODUCTION The first dye was introduced by William Henry Perkin on 1856. It can be produced by the coupling of diazonium sulfanilic acid with nafthol in alkaline solution.. This was the common method used to produce dye nowadays. In this experiment‚ dye produced was the orange II. Azo compound is compound that contain
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Test of Biological Molecules Tamari Manyengavana 5XVGXTJ96 Laboratory Report SCPB111 Principles of Biology Faculty of Applied Sciences Pearson Institute of Higher Education 14 March 2018 Abstract Biological molecules are part of Introduction Biological molecules are formerly known as macromolecules. Macromolecules are large molecules that are formed from smaller molecules called monomers (Ellisman‚ 2014). They are formed by dehydration reactions‚ in which a water molecule is
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