Preparation of Amines

1. Reduction of nitro compounds Reactants: Nitro compounds Reagent: H2 in the presence of finely divided nickel, palladium or platinum Product: Amines Reactants: Nitro compounds Reagent: Metals in acidic medium. Reduction with iron scrap and hydrochloric acid is preferred because FeCl2 formed gets hydrolysed to release hydrochloric acid during the reaction. Thus, only a small Read more about Preparation of Amines[…]

Missing Letter Puzzles 6 [With Answers]

1. Which letter replaces the question mark?Answer: M Explanation: In each diagram, start with the upper left box, and move anti-clockwise around the others. Letters advance through the alphabet in steps of 7 for the upper left diagram, 8 for the middle, then 9, then 10. 2. Which letter replaces the question mark?Answer: B Explanation: Read more about Missing Letter Puzzles 6 [With Answers][…]