Vidyamandir Classes ANSWERS - JEE MAINS Test - 1/IITJEE-2014 CHEMISTRY 1 D 11 D 21 C 2 D 12 C 22 B 3 D 13 B 23 D 4 C 14 C 24 B 5 C 15 B 25 B 6 B 16 C 26 B 7 A 17 C 27 B 8 B 18 D 28 A 9 D 19 D 29 B 10 A 20 C 30 D PHYSICS 31 C 32 C 33 A 34 B 35 CANCEL 36 A 37 C 38 B 39 C 40 C 41 A 42 C 43 D 44 C 45 C 46 C 47 C 48 C 49 C 50 D 51 A 52 D 53 C 54 A 55 C 56 B 57 B 58 D 59 D 60 B
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1.2.3. Chelating resins with amino/carboxyl group A series of amino/imino-carboxyl resins was synthesized in aqueous phase by a solid-phase synthesis method. The blown-up parameter confirms the feasibility for industrialization. Having exchange property with acid and base together. The resulting resins show good properties for the removal and even recovery of heavy-metal ions from their aqueous solutions or wastewater [33]. The Na form of two chelating ion exchange resins Chelex 100
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Making homemade liquid soap is not as challenging as you may think. With just a few ingredients and a little bit of time‚ you can make your own liquid soap right in the comfort of your home. If you are looking to save some money‚ or just want a fun project to do at home‚ you can create a homemade product that works just as well as commercial-grade soaps at a fraction of the cost. You will need to spend some money upfront‚ but you can make several batches of soap with the ingredients. Bar soap works
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Acid Property #1: The word acid comes from the Latin word acere‚ which means "sour." All acids taste sour. Well known from ancient times were vinegar‚ sour milk and lemon juice. Aspirin (scientific name: acetylsalicylic acid) tastes sour if you don’t swallow it fast enough. Other languages derive their word for acid from the meaning of sour. So‚ in France‚ we have acide. In Germany‚ we have säure from saure and in Russia‚ kislota from kisly. Base Property #1: The word "base" has a more complex
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Alkali Metals Introduction Alkali metals refer to six elements belonging to the Group IA of the long form of the Modern Periodic Table‚ viz. Lithium (Li)‚ Sodium (Na)‚ Potassium (K)‚ Rubidium (Rb)‚ Cesium (Cs) and Francium (Fr). Fr is a radioactive element. These elements are called so because they form strongly alkaline oxides and hydroxides. Electronic Configuration of Alkali Metals Each of the alkali metals has one electron in their outermost (valence) shell‚ which is just outside an inert
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Alkaline soil is referred to by some gardeners as”sweet soil”. The pH level of alkaline soil is above 7‚ and it usually contains a great deal of sodium‚calcium and magnesium. (1) Alkaline soil occurs in areas with high limestone content‚ easy souble phosphorus and calcium binding‚ formation of insouble calcium salts of phosphorus‚ reducing the effectiveness of phosphorus. Also‚ in calcareous soils‚ boron‚ manganese‚ molydenum‚ zinc‚ iron greatly reduces the effectiveness of the crop often feel inadequate
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1. Colour Fastness to Light This method is intended for accessing the resistance of the colour of textiles to the action of daylight. Principle: A specimen of the textile is exposed to the light from a Xenon arc lamp under prescribed conditions‚ along with eight dyed wool standards. The fastness is assessed by compared the fading of the textile with that of the standards. Apparatus and Materials: - Blue standards - Humidity Test Control Fabric - Light fastness test apparatus containing
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What ever the workout routines may be that you engage in on a daily or weekly basis you will need to hydrate yourself. You will probably find that you need to drink before‚ during and after your intense workout. Many people find that asking themselves questions like "What should i drink?" or "How Will What I Dink Affect my Workout Routines"? are good questions to ask‚ especially to see the results they are looking for. Over the past several years there’s been an amazing increase of the usage of
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BERYLLIUM Beryllium is a hard and brittle alkaline earth metal‚ which is greyish in colour‚ and an excellent thermal and electrical conductor. The melting point of beryllium is 1278°C‚ the boiling point is 2970°C. There is a fine layer of beryllium oxide covering it’s surface so it will not react with water or steam. However‚ it will react with oxygen when heated to around 600°C. Beryllium originally named glucinium‚ which derives from the Greek word “glykys”‚ which means sweet. This
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Consumer Behaviour Assignment Objective: To understand and apply different concepts and models of Consumer Behavior. Phase I The Product selected is Dove Soap. Dove soap‚ which was launched by Unilever in 1957‚ has been available in India since 1995. It provides a refreshingly real alternative for women who recognise that beauty is not simply about how you look‚ it is about how you feel. The skin’s natural pH is slightly acidic 5.5-6. Ordinary soaps tend to be alkaline‚
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