Some Important Information About Arsenic
What is Arsenic ? Arsenic is a chemical element with symbol As and atomic number 33. It was first isolated by Albertus Magnus in 1250. Arsenic is a semi-metal element,…
Preparation of Benzoic Acid from Benzyl chloride
Place about 2.3 mL benzyl chloride into a 250 mL round bottomed flask equipped with a reflux condenser and wash the flask with 50 mL distilled water. Then add 2…
How do you recognize a Formalin free fruit
A fresh fruit is always firm or soft on touch. Its skin shows natural look which changes day by day. A fruit dipped in formalin solution feels hard on touch.…