INORGANIC CHEMISTRY – CLASS XI (ISC) Properties of Group 1 elements [Alkali metals] 1. Due to high reactivity‚ alkali metals do not occur free in nature. Elements of group 1 (or IA) are known as alkali metals because their hydroxides are soluble in water and form strongly alkaline solutions. Alkali metals are stored under kerosene oil because they get tarnished on exposure to air. 2. The general electron configuration of alkali metals is ns1. 3. Alkali metals have largest size and lowest
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_____RICHARD HAKLUYT___1584_____ A particular discourse concerning the great necessity and manifold commodities that are like to grow to this Realm of England by the Western discoveries lately attempted‚ Written in the year 1584 * known as DISCOURSE OF WESTERN PLANTING [Excerpts] 1. That this western discovery will be greatly for the enlargement of the gospel of Christ whereunto the princes of the reformed religion are chiefly bound among whom her Majesty is principal. . . . Then it is necessary
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SYLLABUS CHEMISTRY (043) CLASS-XII – (2012-13) Annexure - ‘ I ’ S.No. 1. 2. 3. 4. Type of Question Long Answers (LA) Short Answers-II (SA II) Short Answers-I (SA-I) Very Short Answer (VSA) Total Marks for No. of Total Marks each Question Questions 5 3 2 1 3 9 10 08 30 15 27 20 08 70 Weightage 4 5 5 5 4 3 8 5 3 4 4 6 4 4 3 3 70 Total: S.No. UNIT 1. 2. 3. 4. 5. 6. 7. 8. 9. 10. 11. 12. 13. 14. 15. 16. Solid State Solutions Electrochemistry Chemical Kinetics Surface Chemistry General Principles
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5. POTASSIUM PERMANGANATE Potassium permanganate (KMnO4) is used primarily to control taste and odors‚ remove color‚ control biological growth in treatment plants‚ and remove iron and manganese. In a secondary role‚ potassium permanganate may be useful in controlling the formation of THMs and other DBPs by oxidizing precursors and reducing the demand for other disinfectants (Hazen and Sawyer‚ 1992). The mechanism of reduced DBPs may be as simple as moving the point of chlorine application further
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Such a Long Journey by Rohinton Mistry Plot Summary Such a Long Journey examines the life of a handful of Parsi Indians in the turbulent early 1970’s. When Britain withdraws from the subcontinent in 1948‚ two states are created. Muslims form one state‚ Pakistan. Pakistan’s two parts are widely separated by its massive southern neighbor‚ India. In India‚ Hindus predominate‚ although society is officially secular. Parsis are a tiny‚ secretive religious minority. The inhabitants of Khodadad
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The Benefits of Studying Abroad Studying abroad is one of the most exciting experiences a student can have. Not only will they have an incredible adventure travelling to a new destination but they’ll be able to submerse themselves in a new culture and learn from the lifestyles of the local community. By involving themselves in a study abroad education‚ students will be able to add that extra something special to their tertiary education‚ and whilst doing so will make incredible memories‚ friends
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CERTIFICATION This project report is certified by the supervisor and approved by the head of department of chemical engineering. Supervisor: HOD: Date: Date: DEDICATION This project work is dedicated to God Almighty‚ the Source of all wisdom‚ to him glory and honour be forever Amen. ACKNOWLEDGEMENT I wish to express my profound gratitude to all my lecturers‚ especially the Head of Department (HOD) Chemical
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Important Personalities in Police Photography *Joseph Nicephore Niepce - was able to obtain camera images on papers sensitized with silver chloride solution in 1816.He invented a photographic process which he called "heliography" meaning "writing of the sun" *Louis Jacques Mande Daguerre - invented "Daguerreotype"‚ an early photograph produced on a silver or silver-covered copper plate.It formed an image directly on the silver surface of a metal plate.It was a positive process‚thus‚it yielded
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Title: Critical Analysis of Jalswarajya scheme on basis with Time and Cost Ratio for Satara District 1. Introduction 1.1General 1.2 Background 1.2.1 Innovative Initiatives of Government of Maharashtra 2.Literature Review 3.Jalswarajya 3.1 Concept of Jalswarjya schemes and its existing nature 3.2 Visualisation of Process followed in planning and execution 3.4- Phases of jalswarajya 3.4.1 Pilot Learning 4. Accountability of Jalswarjya 4.1 What is Accountability 4.2 How is
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Research Journal Of Chemistry And Environment‚ Vol. 7 (4) Dec. (2003) Res. J. Chem. Environ. Review Paper: Biosorption of Heavy Metals N. Ahalya‚ T.V. Ramachandra*l and RD. Kanamadi2 1. Centre for Ecological Sciences‚ Indian Institute of Science‚ Bangalore 560 012‚ INDIA. 2. Department of Zoology‚ Karnataka University‚ Dharwad‚ INDIA. Abstract: The discharge of heavy metals into aquatic ecosystems has become a matter of concern in India over the last few decades. These
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