Which optional subject is more scoring in UPSC?

Bro!! Come out of misconception.

There is no such subject because good amount of understanding and writing skill is needed to score good in UPSC optional papers.

I would suggest to look into the syllabus properly and choose among the subjects which you have read in your graduation.

You can never become confident in a new subject which you have not studied before and questions in optional would come at the level of graduation 3rd year and post-graduation 1st year, so don't make this mistake.

My senior passed with 86 rank, his optional was Physics and one of my friend got 231 rank with Maths. in last year. So choose in which you are confident enough.

Best of luck !!

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Chemistry Lab Experiment: Determination of distribution coefficient of iodine between organic and inorganic layer

Determination of the Distribution Coefficient of Iodine Between Organic and Aqueous Phases Introduction The distribution (or partition) coefficient is the ratio in which a solute like iodine divides itself between two immiscible solvents—here, an organic solvent (CCl₄ or CHCl₃) and water. This experiment determines the distribution coefficient K = [ I 2 ] organic / [ I 2 ] aqueous K = [I_2]_{\text{organic}} / [I_2]_{\text{aqueous}} at room temperature. Objective To determine the distribution coefficient of iodine between distilled water and carbon tetrachloride or chloroform. Principle When shaken with two immiscible solvents, iodine distributes between them based on its solubility. At equilibrium, the ratio of concentrations remains constant at a given temperature: K = [ I 2 ] organic [ I 2 ] aqueous K = \frac{[I_2]_{\text{organic}}}{[I_2]_{\text{aqueous}}} Titration using sodium thiosulfate and starch as an indicator allows us to determine the iodine concentrations in both ...

B.Tech./MSc/BSc Chemistry Lab Experiment: Decomposition of Diacetone alcohol – Dilatometry method

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Is it possible to install Windows 10 or 11 on an Android device?

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