Nowadays picric acid is prepared by treating phenol first with concentrated sulphuric acid which converts it to phenol-2,4-disulphonic acid, and then with concentrated nitric acid to get 2,4,6 …

With conc HNO 3, phenol is converted to 2,4,6-trinitrophenol also known as picric acid in presence of Sulphuric acid which act as a catalyst. The yield of the reaction is poor.

- conc. H N O 3 is concentrated nitric acid. It is a nitrating reagent. - Phenol will undergo nitration reaction in the presence of conc. nitric acid, H N O 3 to give 2, 4, 6-trinitrophenol which is also …

Conversion of phenol into picric acid: When phenol is treated with hot and conc. HNO3 in the presence of conc. H2SO4 (nitrating mixture), yellow coloured picric acid, i.e. 2,4,6 …

Dilute HNO3: Phenol reacts with dilute nitric acid at low temperature to give a mixture of ortho- and para-nitrophenol. Conc. H2SO4: At room temperature (298 K), phenol reacts with …

2020年2月27日 · When phenol is heated with concentrated nitric acid, 2,4, 6-trinitrophenol (picric acid) is formed.

2019年5月21日 · (i) With dilute nitric acid at low temperature (298 K), phenol yields a mixture of ortho and para nitrophenols. (ii) With concentrated nitric acid, phenol is converted to …

2023年8月29日 · Nowadays picric acid is prepared by treating phenol first with concentrated sulphuric acid which converts it to phenol-2,4-disulphonic acid, and then with concentrated …

Solution: With concentrated nitric acid, phenol is converted to 2,4,6 trinitrophenol. The product is commonly known as picric acid. The yield of the reaction product is poor.

What is the product form when phenol is nitrated with conc. H N O3 in the presence of conc. H 2SO4? View Solution Q 5