Soul of Chemistry

Soul of Chemistry Wishes You  Happy Durga Puja.  Get Set your Body and Mind to have adequate hormones like Serotonin  and Dopamine, to have ethereal happiness and strength as you deserve the Love and Benediction of Maa Durga. Imagine for a while that the molecules of serotonin and dopamine  (respectively)  are being created in your body to accelerate the feeling of motivation and strength. Like in Chemistry, AdN Stands for Nucleophilic addition reaction, Maa Durga is the symbol of Protection, Strength, Motherhood, destruction and war. She destroys the evil, create dareness and establishes peace. Image Credit: Maa Durga - 1 VedSutra, CC BY-SA 4.0 <https://creativecommons.org/licenses/by-sa/4.0>, via Wikimedia Commons https://upload.wikimedia.org/wikipedia/commons/f/f6/A_traditional_representation_of_Maa_Durga_from_a_Durga_Puja_pandal_in_Kolkata.jpg Maa Durga -2 https://www.google.com/imgres?imgurl=https%3A%2F%2Fwww.maxpixel.net%2Fstatic%2Fphoto%2F1x%2FIndia-Durga-Maa-Pandal-Statu

 +3 Spot Selection 2022: Rules and Eligibility Majority of the students scored enormously high this year in the HSE (+2) final examination. Unfortunately most of the parents did not notice this and felt proud of the result. With ambition very high they filled for high ranked colleges in the application form. Now much of the students running here and there being helpless. Spot admission is the last hope for them. Click here for Learning App for BSc Honours and Generic Elective Now it has been highly essential to choose colleges wisely so that you can get a proper college or atleast any of the colleges. The spot selection is for the students who have registered and submitted their CAF in the first phase admission (11 Aug to 1 sept). The remaining vacant seats will be published on 20th september at 2.00 pm and Fresh CAF (for applying online again using the same id and password) will be available from 21 september at 11 am. For all other details click on the following link: Click here to

 Dear students, you all were awaiting the day when+3 form Fillup will be published. Those who are high up in mind, and to choose the path of master and research,  Indian administrative service, defence, computer based education etc., Going for+3 education is best for them. We in this blog already have posted updates regarding career after graduation. You may refer to that from the followings link; Click here to get Career after graduation Click here to know about career after BSc Click here to apply for Graduation in different colleges  

 Notes on GE Chemistry - II (Generic Elective Chemistry - II) Aromatic Hydrocarbons:      Compounds having chemistry similar to benzene are traditionally known as aromatic compounds. Benzene shows some unexpected chemical behaviour and a remarkable stability despite the presence of high degree of unsaturation. This special characteristic which imparts stability to the aromatic compounds is called the aromaticity.     Aromaticity is a property of typical cyclic planar molecular structures which are generally more stable compared to similar geometric or connective arrangements with the same set of atoms due to pi bonds in resonanance (or delocalisation of electrons). Conditions of aromaticity: The compounds or species are considered to be aromatic if they fulfill the following conditions: 1. The cyclic compounds must have conjugated double bonds. 2. Each ring atom should have an unhybridised p orbital to result in sp2 hybidisation. These unhybridised p orbitals must overlap to

6th Semester University BSc Chemistry: Questions and Answers      Getting previous year questions boosts confidence as you become able to find the type and level of questions . You practice accordingly and get success. Following the links you can find various previous year questions. This will further help you to prepare all type questions incuding short questions. You can also get answers to the previous year questions.     In some universities,  Due to change of syllabus, the paper CC XI of semester V is to be considered to be CC XIV of semester VI.  Get CC-XIII 2024 question Get CC-XIV 2024 question Get DSE III 2024 questions Following are the important questions for DSE III Industrial chemistry: #Fractional distillation of air for LIN, LOX, LAR #Hazards of SO2 gas #Handling of H2O2 #Calcination and roasting #Components of ecosystem #Green house effect #Global warming #Ozone layer depletion #Smog and its type  #Photochemical smog #Ultrasound and purification of water #Water qualit

Electric Light Bulb: Incandescent Lamps, Gas discharge Lamp (Fluorescent, CFL) and Led Lamps           Electric light bulb is one of the greatest invention that truly illuminated human's life.  Though Thomas Edison is credited as the inventor of the electric light bulb as he could manage to develop and manipulate the entire requirements, other eminent  researchers should be honoured for their contributions.   Original carbon-filament bulb from Thomas Edison's  shop in Menlo Park Thomas Edison’s Signature     The history of electric light bulb dates back to 1761 when Ebenezer Kinnersley demonstrated heating a wire to incandescence (means light producing). Next  breakthrough was in 1802, when Sir Humphry Davy could produce incandescent light by passing current through a strip of platinum (taking advantage of its high melting point and inertness for which  it will not react with atmospheric gases), but the light was not bright enough nor did it last long enough. The high cost o

 GE - I (Generic Elective) Chemistry Practical Experiments 1. Estimation of Oxalic Acid by titrating it against standard KMnO4 Solution (0.098 N). Principle: The reaction between oxalic acid and potassium permanganate is an example of redox (oxidation reduction) titration. KMnO4 acts as the oxidising agent and oxalic acid as the reducing agent. They react as per the following reaction: 2KMnO 4 + 3H 2 SO 4 -------> K 2 SO 4 + MnSO 4 + 5O H 2 C 2 O 4 .2H 2 O + O ---------> 2CO 2 + 3 H 2 O Thus the equivalent mass of oxalic acid is equal to half of its molecular mass, i.e., 126/2 = 63. The given oxalic acid solution is taken in 100 ml standard  measuring flask and made up to  the mark with water. It is then titrated against standard KMnO4 solution. From the volume  of KMnO4 solution and Oxalic acid solution  and the normality of KMnO4 solution the  normality of oxalic acid solution is determined from which the amount of oxalic acid in whole  of the supplied solution is calcu

 Organic Chemistry Question and Answer: Basic Concept: Organic Reaction Intermediates  Q. What are carbocations and what are their types? Ans: Organic cationic species having +ve charge on an sp2 hybridised carbon atom is called a carbocation. This positive charge on carbon may further be delocalised due to shifting of electrons by resonance involving an unshared pair of electrons or a double or triple bond at allylic position. These are called the classical carbocations .     Examples include:      CH 2  = CH – CH +           ,      PhCH 2 +            ,         R 2 CH +                These are formed by heterolytic cleavage of a C -X bond or by protonation of alcohols or by protonation of alkenes.     But in a nonclassical carbocation, the positive charge on carbon is delocalised by a  single bond  or sometimes by a  double or triple bond that is not present at the allylic position. Unlike classical carbocation the positively charged  carbon is not an sp2 hybridised carbon.