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Synthesis of Indigo

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This is based on Nile Red's Video Of Indigo Synthesis and some of my inference Please Support Nile Red (Step 1 of the traffic light experiment) Material: 1)     Acetone 2)     Diethyl ether 3)     NaOH 4)     2-Nitrobenzaldehyde 5)     Ethanol (95%) Prepare 1M of NaOH Prepare solution of 2-Nitrobenzaldehyde with acetone first. Then after stirring, add water of equal amount (Cloudiness Expected to happen) Add the NaOH slowly to solution Baeyer–Drewson indigo synthesis: Note: Due to Presences of Na + ions, Reaction: CH 3 COOH+Na + ⇌ CH 3 COO (-) Na (+) +H + Add acetone as reaction takes place Note: Reaction is Exothermic After this put solution in Ice Bath and let it cool and stir After this Gravity filter through filter paper Note: To make filtration fast, one can use a vacuum filter It is then washed with little distilled water After water goes through Use Ethanol to wa...
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Indian Capture the Flag Junior (InCTFj)

Indian Capture the Flag Junior or InCTFj, as I will be referring to throughout this article, is a Jeopardy-type hacking competition. In contrast to its cousin attack-defence capture the flags, these types of competition follow the format of giving puzzle sort to speak and the object is to get a flag usually in the format *ctf{@@@@} where the ‘*’ is the CTF name and ‘@@@@’ is some text. To be completely honest, these puzzles are extremely hard and require you to think way outside the box and learn more than before. We had to learn many things which people admitted to were very hard. InCTF was the dream child of Vipin Pavithran as he was embarrassed that India for being highly populated and high in IT sector jobs, had no teams (in 2008), so he made team bi0s, and setup InCTF to bring attention to CTF in India. Now as of 2018, India has 214 Internationally positioned teams as per ctftime.org, with Vipin sir’s team bi0s being first on the Indian stage and 30 th on the world stage, which...
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