How is picric acid Synthesised?

Picric acid is basically prepared from phenol by reacting phenol with concentrated sulphuric acid and concentrated nitric acid. The nitro groups from nitric acid attacks on ortho and para positions which is the best suitable and stable position for the newly formed compound which is picric acid.

What product is formed when picric acid is reduced?

The reducing sugars react with Picric Acid (toxic yellow crystalline solid) also chemically known as 2,4,6-trinitrophenol (TNP) to form a red coloured Picramic Acid.

What is the reagent which will react with cumene to give phenol?

cumene hydroperoxide
What is the reagent which will react with cumene to give phenol? Explanation: Upon oxidation of cumene (isopropylbenzene) in presence of air (oxygen), cumene hydroperoxide is obtained. Upon further treatment of cumene hydroperoxide with dilute acid phenols are obtained. 7.

How do you prepare for Trinitrophenol?

(i) Phenol on reaction with concentrated HNO3 results in the formation of 2,4,6-Trinitrophenol or Picric acid. ii) 2-methyl propene can be obtained from 2-methyl propanol by the reaction of the later with alc. KOH.

How silver mirror is formed?

The mirror forms when a thin film of metallic silver deposits on the inner surface of the flask. When an aldehyde is combined with an ammonia complex of silver in a basic aqueous solution, the aldehyde slowly reduces the complex to silver metal. A more uniform mirror is produced with a water-soluble aldehyde.

How is chlorobenzene converted to benzoic acid?

We can obtain Benzoic acid from chlorobenzene by treating sodium and methyl chloride in the presence of dry ether with chlorobenzene, and the product is formed. The formed product is then oxidized to form benzoic acid. The benzoic acid is then reacted with sodium hydroxide and calcium oxide to form benzene.

Which acid is used in explosive?

Picric acid
Uses. Picric acid is used in the production of explosives, matches, and electric batteries.

Why purple ring is formed in Molisch test?

Molisch’s Test: It is based on the dehydration of the carbohydrate by Sulphuric acid to produce an aldehyde, which condenses with two molecules of α-naphthol, resulting in appearance of a purple ring at the interface.

How do you make Sodium picrate from picric acid?

As picric acid is an explosive stuff when dry, don’t dry it and don’t save it. Instead, add 1 m L water to the whole sample of picric acid from the preceding experiment. Add 1 m L N a O H 1 M. This produces a yellow solution of sodium picrate. Add one grain N a X 2 S. Heat for 2 minutes.

How can picric acid be obtained from phenol?

Picric acid is obtained by Nitration of phenol by concentrated HNO3 in presence of Concentrated H2SO4. Thank you asking. How can picric acid be prepared from chlorobenzene?

What are the applications of picric acid?

Picric acid (2,4,6-trinitrophenol) is widely used in industry. Picric acid is the sta rting and in studying the structure of metals. explosives. Picric acid acts as an electron acceptor by electrostatic interact ions. By hydrogen and amines. with aminophenols have antimicrobial properties. reducing sugars. is based on the Jaffe reaction.

How does picric acid act as an electron acceptor?

Picric acid acts as an electron acceptor by electrostatic interact ions. By hydrogen and amines. with aminophenols have antimicrobial properties. reducing sugars. is based on the Jaffe reaction. The synthesis of picric acid is carried out by several methods.