Sage-Tips

What happens when benzene is treated with conc hno3 in presence of conc H2SO4?

Benzene reacts with concentrated nitric acid at 323-333k in the presence of concentrated sulphuric acid to form nitrobenzene. This reaction is known as nitration of benzene.

What happens when benzene is treated with mixture of conc H2SO4 and conc hno3 at 330K?

Explanation: Benzene when treated with concentrated nitric acid and sulfuric acid at 330K temperature it forms nitrobenzene that is nitration occurs. The reaction is highly explosive and risky as a lot of heat is evolved during the reaction.

What happens when benzaldehyde is treated with a mixture of conc hno3 and conc H2SO4?

Explanation: Benzaldehyde when reacts with conc. sulfuric acid and nitric acid, it will produce Meta-nitro benzaldehyde. This is used in preparation of pharmaceuticals.

What happens when benzene is heated with concentrated H2SO4?

Benzene on heating with conc. H2SO4 gives benzene sulphonic acid which when heated with superheated steam under pressure gives benzene.

What happens when benzene is treated with HNO3?

On reaction with concentrated Nitric Acid, Benzene gets converted into nitrobenzene. This phenomena is usually known as nitration of benzene.

Which gives para nitro compound upon nitration with conc HNO3 and H2SO4?

Which of the following statements regarding Friedel-Crafts reactions is wrong? a) Alkylation of benzene with an alkyl chloride requires only a catalytic amount of a Lewis acid such as aluminum chloride. b) Alkylation of benzene with an alcohol requires only a catalytic amount of a Brønsted acid such as phosphoric acid.

What happens when Methoxybenzene is subjected to nitration?

When anisole is nitrated with a mixture of conc. HNO3 and H2SO4 it gives mixture of ortho-Nitroanisole and para-Nitroanisole (major) products.

What product is formed when the benzene is treated with hno3 and H2SO4?

When benzene is heated with concentrated sulfuric acid ( H2SO4) and concentrated nitric (HNO3) acid, nitrobenzene is given as the product. A hydrogen atom of benzene is replaced by a nitro group (-NO2) in this reaction.

What happen when benzene is heated with concentrated h2 S o4 at 250 degree Celsius?

H2SO4 gives benzenesulphonic acid which when heated with superheated steam under pressure gives benzene.

What happens when benzene is treated with chloroethane and anhydrous alcl3?

Here, benzene reacts with ethyl chloride in presence of anhydrous aluminium chloride. That means, the reaction is a Friedel Craft reaction. Let’s understand the electrophilic substitution of benzene rings. Because of this, the ring gets deactivated comparing the benzene ring.

What happens when benzene is heated with H2SO4 and HNO3?

When benzene is heated with concentrated sulfuric acid ( H 2 SO 4) and concentrated nitric (HNO 3) acid, nitrobenzene is given as the product. A hydrogen atom of benzene is replaced by a nitro group (-NO 2) in this reaction. In this tutorial, we will learn followings.

What happens when benzene reacts with concentrated nitric acid?

Nitration of Benzene Benzene reacts with concentrated nitric acid at 323-333k in the presence of concentrated sulphuric acid to form nitrobenzene. This reaction is known as nitration of benzene.

How is nitnitrobenzene formed from benzene?

Nitrobenzene is formed in the nitration process of benzene using concentrated and . The reaction is given by; If a large amount of is added to the mixture, more ion furnishes and rate of electrophilic aromatic reaction slow down i.e concentration of electrophile is decreased.

What happens to H2SO4 after it reacts with nitric acid?

After the reaction, H2SO4 is generated again to show catalyst properties. Sulfuric acid shows acidic properties while nitric acid behaves as a base. At higher temperature, there is a chance to give different substitutes of nitro (can join more than two -NO 2 groups).