[PARVATIBAI CHOWGULE COLLEGE(H.S.S)-MARGAO-GOA] Chemistry chart Std-XII Name______________________________________________ Class____________________________________ Div__________________ Roll No___________ Batch No_______ 1 [PARVATIBAI CHOWGULE COLLEGE(H.S.S)-MARGAO-GOA] Chemistry chart Std-XII VOLUMETRIC ANALYSIS REDOX TITRATIONS Experiment No:- 1 Date:--------------- Aim:- You are provided with two solutions as follows. Container A: -----------------M/N Stock Solution of Hydrated
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Experiment 2: Food Tests Objective * To study the presence of reducing sugars. * To study the presence of protein. Introduction In this experiment‚ glucose‚ maltose‚ lactose and sucrose are used for testing reducing and non-reducing sugars. Glucose is monosaccharide while maltose‚ lactose and sucrose are disaccharides of carbohydrates. Monosaccharaides are the monomers which make up all other carbohydrates and cannot be broken into smaller molecules by hydrolysis. Disaccharides are
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with oxygen in presence of electric current/ 4. Define electrolysis. 5. What is decomposition reaction? Give an example 6. Calcium oxide react with water to form calcium oxide. What type of reaction is it? 7. What happen when ferrous sulphate is heated? 8. What happen when copper metal is dipped in silver nitrate solution/Give the balance chemical equation? 9. Write chemical formula for following. a. calcium fluoride.b.iron(II)bromide 10. Write chemical names of
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Ammonia and Its Salts 1. Ammonia‚ NH3 is a very important compound in industry. 2. The main uses of ammonia: a) To manufacture nitrogenous fertilizers such as ammonium sulphate‚ ammonium nitrate and urea b) The liquid form is used as a cooling agent (refrigerant) in refrigerators c) As a raw material for the manufacture of nitric acid in the Ostwald process d) To be converted into nitric acid used for making explosives e) As an alkali to prevent the coagulation of latex
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Aim: 1. Find out which substances are essential for rusting to occur. 2. Find out how the rusting process can be inhibited and how it can be promoted. Hypothesis: I predict that air (oxygen) and water are necessary for iron to rust. The nail in water with air will rust while the nails in dry air and in boiled water with no air will not. I also predict that galvanizing the nail with zinc and greasing the nail and painting the nail and electroplating the nail will inhibit rusting. I also predict
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-ve/ not present in corn starch | Discussion : The reducing sugars include all monosaccharides such as glucose and fructose and some disaccharides such as maltose. Benedict’s Test for reducing sugars contains copper sulphate. Reducing sugars reduce souluble blue copper sulphate‚ containing copper (II) ions (Cu2+) to insoluble red-brown copper
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TITLE: Qualitative Analysis Of Cations: Ca2+‚ Ba2+‚ Mg2+‚ Zn2+ and Al3+ OBJECTIVE: • To identify the cations in known and unknown samples. • To construct a logical flow chart for identifying the components of a mixture of unknown cations. INTRODUCTION: In this experiment we will study about qualitative analysis of cations: Ca2+‚ Ba2+‚ Mg2+‚ Zn2+ and Al3+. Qualitative analysis is an analytical procedure in which the question ‘what is present?’ is answered. In a systematic qualitative analysis
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=vegetable oil + sulphuric acid TLS = Triethanolamine Lauryl Sulphate SLS = Sodium Lauryl Sulphate Contain no additives Used before perming Shampooing for Services before a perm before a semi-permanent colour To remove barriers open cuticle Types of Water temporary hard permanent hard Temporary Hard Caused by calcium/magnesiu m carbonates Softened by boiling or chemical water softeners Permanent Hard Caused by calcium/magnesiu m sulphates Softened only by using water softener Shampoos most shampoos
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7 Estimation of Phosphorous in the mixed sample. 8 Estimation of Sugar by Lane-Eynon method. 9 Estimation of acid concentration using conductometry. 10 Estimation of copper in brass. 11 Estimation of lead as lead Sulphate. 12 Estimation of Iron using colorimeter. INSTRUCTIONS 1. Get your Completed observation book signed‚ on the day of the experiment itself or maximum by the next day. 2. Write the procedure in your record note book in “PAST
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group.This means that sugar can act as a reducing agent.The procces of reducing sugar is isomerisation‚example of reducing sugar islactose‚maltose‚glucose and fructose.All monosaccharides are capable of reducing other chemicals such as copper (II) sulphate to copper oxide.Beside that disaccharides such as maltose and lactose are reducing sugar‚however sucrose is non reducing sugar.Sugar exist in solution as an equliburum mixture of open chain and closed ring or in other words is cyclic structures.In
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