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Aim :-  PREPARATION AND CHARACTERISATION OF POTASSIUM TRIS OXALATO CHROMATE(III) TRIHYDRATE Apparatus :-  Conical flask Watchman filter Oxalic acid Potassium dichromate Potassium oxalate monohydrate Ethanol Ice water bath. Chemical formula: -  K3[Cr(C2O4)3].3H2O Reduction : -     14H++ Cr2O72-+6C2O42-+6e-→ 2Cr(C2O4)32-+7H2O Oxidation:   3C2O4   →  6CO2+6e- Overall Equation:  K2Cr2O7+7H2C2O4+2 K2C2O4  →  K3[Cr(C2O4)3]+6CO2+7H2O Procedure:-  Mix 5g of oxalic acid in 10mL of water with potassium dichromate in a 25mL conical flask. A blue-black or dark blue mixture was formed and spontaneously warm up almost to boiling. Bubbles formation would be observed. After about 15 minutes, dissolve 2.10g of potassium oxalate monohydrate in the mixture. Heat the mixture for approx. 15 minutes. Let it cool down to room temperature. Now add 10mL of 95% ethanol and cool the mixture using ice bath for about 15-30 minutes. A dark green colore...

Aim :-  To synthesize Pentaamminechlorocobalt (III) chloride. Apparatus :-  Flask Beaker Stirrer Dropper Steam bath Filter paper Buchner funnel, Ice cold water Measuring flask. Chemical Requirements :-  Cobalt(III)chloride Ammonium chloride Hydrogen peroxide HCl, Ammonia solution Distilled water  Acetone. THEORY :-  This is one of the oldest known complexof cobalt. Chloropentaamminecobalt (III) chloride i sthe dichromate salt of the coordination complex [Co(NH₃)₅Cl]2+.It is purple or pink, diamagnetic and water soluble salt.The salt is prepared with a two step process starting with oxidizing a solution of cobalt chloride and ammonia. 2 CoCl2 • 6H2O + 10 NH3 + 2HCl + H2O2  →  2 [Co(NH3)5(OH2)Cl3 + 12H2O This intermediate is then heated to induce coordination of one of the outer space chloride ligand. [Co(NH3)5(OH2)]Cl3 → [Co(NH3)5Cl]Cl2 + H2O. In aqueous solution of chloropentaammine cobalt(III)chloride reforms aquapentaammine complex and with conc. S...

Aim :-   Preparation and characterization of bis-(N,N-disalicylalethylene-diamine)-μ-aquadicobalt(II) Apparatus :-  Round bottom flask Reflux condenser Beaker Sunction pump Filter paper Thermometer,  Chemical Requirements :-  Salicylaldehydrate , Cobalt (II) chloride hexahydrate , Ethanol, Ethylene diamine , Acetic acid, Methan ol , Hydrochloric acid , Hydrogen peroxide, Sodium acetate trihydrate , Sodium hydroxide, Bis-(N, N’ disalicylidine ethylenedia). Theory :-  bis-(N,N-disalicylalethylene-diamine)  μaquadicobalt(II) consists of a ligand known as salen ligand. Salen refers to tetradentate C2 symmetric ligand synthesized from salicylaldehyde (sal) and ethylenediamine (en). It may also refer to a class of compounds, which are structurally related to the classical salen ligand , primarily bis-Schiff bases.Schiff bases are characterized by the presence of a C=N double bond (imine) which is bound to an aryl group. They are synthesized from an aromatic amine...

Aim :-  Synthesis of Bis ( triphenylphosphine ) copper( I ) nitrate. Appratus :-  Beaker reflux condensor  volumetric and round bottom flask  stirrer Burner water bath  thermometer  Chemical Requirements:-   Copper(II)nitratetrihydrate,  triphenyl phosphine methanol diethylether. Theory:-  The chemical formula of Bis(triphenylphosphine) copper(I) nitrate is [Cu[P(C6H5)3] 2(NO3)].The action of triphenylphosphine on copper(II) nitrate trihydrate in methanol mixtures gives rise to the complex CuNO3 (PPh3)2 . X-ray crystallographic study of CuNO3 (PPh3)2 has shown it to contain tetrahedrally coordinated copper(I) and a bidentate nitrato group . In this complex the P--Cu—P angle was found to be quite large and there seems to be little reason why a third triphenylphosphine ligand could not be coordinated if the nitrato group is bidentate. The P--Cu—P bond angle is 131.1o The nitrate group is bidentate with N-O bond distance is 1.21Ao...

Aim : To synthesize a metal acetylacetonate complex . Theory :- Acetylacetone (2,4-pentanedione) is an organic compound, a β-diketone, that exists as an equilibrium mixture of tautomeric keto and enol forms. In basic solution, it is deprotonated to form the acetylacetonate anion (acac).The acac anion can act as a ligand towards metal ions, typically forming a bidentate complex where the metal is bound to the two oxygen atoms, thus forming a 6-membered ring. Metal acac compounds are typically isolated as crystalline solids that are neutral, hence an Mn+ metal forms a complex with n acac ligands . Acetylacetonate forms neutral complexes with most metals. Pre paration Method of Al(acac)3 :- To a conical flask, add 3 mL acetylacetone and 40 mL distilled water followed by 8 mL of dilute (5 mol L-1) ammonia solution. Dissolve aluminium sulfate [Al(SO4)3.16 H2O] in 30 mL distilled water. To this solution, add the ammoniacal acetylacetone solution gradually with stirring. After complete ...

Introduction : -  This Chapter of Surface Chemistry is based on CBSE and state boards of India. These notes is made with the help of the book S Dinesh, Pradeep and Modern. And some topic is noted by NCERT books. How to download these notes:- Firstly we have need to see full videos given by this blog and a YouTube channel of Aniket NCERT. This notes is protected by pdf password we have note password in videos.Any query related to the notes you can join Facebook page WhatsApp group and Twitter. This chapter is based on basic knowledge of class-10.These chapter is important for your competitive exam i.e IIT,JEE,NDA AND NEET competitive exam.In this we study the Chemical Kinetics  Surface chemistry deals with phenomena that occur at the surfaces or interfaces. The interface or surface is represented by separating the bulk phases by a hyphen or a slash. For example, the interface between a solid and a gas may be represented by solid-gas or solid/gas. Due to complete miscibility, ...

This chapter is based on basic knowledge of class-11.These chapter is important for your competitive. Chemical Kinetics Chemical Kinetics Notes Rate of reaction Chemical Kinetics Class 12 Chemical Kinetics Class 12 Notes Chemical Kinetics class 12 ncert solution Chemical Kinetics Class 12 Important Question And Answers Pdf Chemical Kinetics Class 12 State Board Chemical Kinetics Class 12 MCQ Chemical Kinetics Class 12 Handwritten Notes Chemical Kinetics Class 12 Numericals Chemical Kinetics Class 12 Question And Answers Chapter 4 chemical kinetics - NCERT Solutions For Class 12- science Chemical Kinetics Class 12 Handwritten Notes Chemical Kinetics Important Question for jee  Chemical kinetics class 12 notes handwritten pdf- Aniket Ncert 12th Chemical Kinetics Handwritten Notes Pdf For Class 12 Chemical Kinetics handwritten notes pdf Chemical Kinetics class 12 full chapter  Chemical Kinetics Handwritten Kota Notes Pdf Download Ncert Ncert Notes Ncert Notes Pdf Ncert notes chem...

The Britain's administration can broadly be divided into two phases :-  The company administration 1773 to 1857 Background administration 1855 to 1947 In 1600 British East India company exclusive right given by Queen Elizabeth they should trade British to India. After 1764 battle of war, mean diwani rights revenue collection of state of Bengal,Bihar,Odisha. The Company administration regular act 1773 :-  A post of "governor" was now made "governor general" Bengal was the first providence to have first "governor general". Warren Hasting was the first governor general. An executive council of four member assisted him.The supreme court at Calcutta was established with one chief justice his name was Sir Elijah Imphey. Court of director was governing body of the company,court of director mean they will report British government parliament on several matter. Pits India act 1784  :-  Pits India act is a board of control,they manage political affairs in India...

   Introduction: -  This Chapter of Electrochemistry is based upon the NCERT CBSE and state boards of India. These notes is made with the help of the book S Dinesh, Pradeep and Modern. And some topic is noted by NCERT books. Pdf Password Check In This Video :- Ele@123 Firstly  we have need to see full videos given by this blog and a YouTube channel of Aniket NCERT. This notes is protected by pdf password we have note password  in videos.Any query related to the notes you can join Facebook page WhatsApp group and Twitter.  solid state notes total page is 35 Electrochemistry Chapter 3 Electrochemistry Class 12 Chapter 3 Electrochemistry Electrochemistry Class 12 notes Electrochemistry neet question Electrochemistry Class 12 Electrochemistry class 12 handwritten notes Electrochemistry Handwritten Notes Pdf For Class 12 NEET,JEE,MEDICAL & ENGINERING Electrochemistry Class 12 Handwritten Notes Pdf Electrochemistry class 12 notes pdf download Electrochemistry...