Sage-Tips

What are the product obtained on reaction of phenol with Dil HNO3?

When phenol is heated with conc. H₂SO₄,p-phenol sulphonic acid is obtained. The reaction of phenol with nitric acid is a mono-nitration reaction i.e. Only one hydrogen atom gets replaced per molecule of phenol. The products formed are o-nitrophenol and p-nitrophenol.

What happens when phenol reacts with H2SO4 and HNO3?

When phenol reacts with concentrated sulphuric acid, And then the product benzene ortho hydroxy sulfuric acid reacts with concentrated nitric acid, Phenol on reaction with conc. H2SO4 gives a mixture of o- and p- products and then at room temperature o- product is more stable, which on treatment with conc.

Why is nitration of phenol dilute with HNO3?

Reaction of phenol with dilute HNO3 gives. A. p- and m- nitrophenol. Step-2: Nitronium ion acts as an electrophile and attacks at the ortho position of the phenol to form ortho nitrophenol.

When phenol reacts with dilute hno3 at 298 K the products are?

With dilute nitric acid at low temperature (298 K), phenol yields a mixture of ortho and para nitrophenols.

What happens when phenol is treated with dil hno3 and conc hno3?

Answer: It will lead to the formation of picric acid. Explanation: Phenol is an aromatic alcohol. When this compound is treated with concentrated nitric acid, it leads to the formation of a bright yellow colored compound known as picric acid.

How is phenol different from alcohol?

Phenol reacts with neutral ferric chloride solution to give violet colouration whereas alcohols do not react.

What happens when bromine reacts with conc hno3?

Presence of bromine in concentrated nitric acid changes nitrating capacity to brominating one. Terephthalic acid and phthalic anhydride at heating with bromine in concentrated nitric acid can be transformed to ap- propriating tetrabromo substituted compounds.

What happens when phenol reacts with br2?

When phenol reacts with bromine water 2,4,6- tribromophenol is formed. Bromine water is decolourises and a white precipitate is formed.

When phenol is treated with dil HNO3 at low temperature the product formed is?

What happens when phenol is treated with dil HNO3 and conc HNO3?

What happens when phenol is treated with a Dil HNO3 B conc HNO3?

With dilute nitric acid at low temperature (298 K), phenol yields a mixture of ortho and para nitrophenols. The isomer can be separated either by steam distillation or fractional crystallization.

When phenol is heated with conc HNO3 in presence of conc H2SO4 it yields?

Phenols give o-and p-nitrophenol on nitration with conc. HNO3 and H2SO4 mixture.

What happens when dilute HNO3 is added to phenol?

Alcohols, Phenols and Ethers. Zigya App. What happens when dilute HNO3 is added to phenol? Name the method to separate the isomers obtained. With dilute nitric acid at low temperature (298 K), phenol yields a mixture of ortho and para nitrophenols.

What is the reaction between nitric acid and pure phenol?

Phenol can also react with concentrated nitric acid in electrophilic substitution to form 2,4,6-trinitrophenol. This increased substitution is due to concentrated nitric acid having a greater amount of the NO2+ nucleophile per unit volume.

What is the product formed when HNO3 reacts with water?

HNO 3 acid dissociate completely in the water and release hydronium ion (H 3 O +) in the water to form strong acid aqueous solution. Sulfur and nitric oxide (NO) are given as the products by the reaction of hydrogen sulfide and nitric oxide.

What happens when you dilute H2O and NO3+?

H2NO3 (+) further dissociates into H2O and the nitronium ion, NO2 (+). The overall equation is usually represented as given below. When either or both of the acids are dilute, you get a homogeneous mixture (clear solution) containing the hydronium, bisulphate and nitrate ions (H3O+, HSO4- and NO3-).