What is preparation of nitrobenzene?

Nitrobenzene is prepared by nitration of benzene with a mixture of concentrated sulfuric acid, water, and nitric acid.

What is preparation of nitrobenzene?

Nitrobenzene is prepared by nitration of benzene with a mixture of concentrated sulfuric acid, water, and nitric acid.

How is nitrobenzene prepared give equation?

C6H5−NO2 Zn + NaOH C6H5−N=O+C6H5−NH−OH.

How is nitrobenzene prepared from benzene explain with mechanism Class 11?

Give mechanism. When benzene is heated with a nitrating mixture (concentrated HNO3 + conc. H2SO4) to about 330K, nitrobenzene is produced. attacks the benzene ring to form an intermediate carbocation which is resonance stabilised.

How is nitrobenzene prepared in laboratory in pure and dry state?

It is first washed with dil. Na2CO3 to remove the acidic impurities and then with water severaltimes. It is then dried over fused calcium chloride. It is finally distilled at 2110C to get pure nitrobenzene.

How is aniline prepared from nitrobenzene?

Nitrobenzene is reduced to aniline by Sn and concentrated HCl. Instead of Sn, Zn or Fe also can be used. Aniline salt is given from this reaction. Then aqueous NaOH is added to the aniline salt to get released aniline.

How is nitrobenzene prepared in laboratory give its reduction in different conditions reagents?

What is nitrobenzene for?

Most of the nitrobenzene produced in the United States is used to manufacture a chemical called aniline. Nitrobenzene is also used to produce lubricating oils such as those used in motors and machinery. A small amount of nitrobenzene is used in the manufacture of dyes, drugs, pesticides, and synthetic rubber.

What is the functional group of nitrobenzene?

The nitro group is one of the most common explosophores (functional group that makes a compound explosive) used globally. The nitro group is also strongly electron-withdrawing. Because of this property, C−H bonds alpha (adjacent) to the nitro group can be acidic.

Who discovered nitrobenzene?

chemist Eilhardt Mitscherlich
Nitrobenzene was first prepared in 1834 by the German chemist Eilhardt Mitscherlich, who treated benzene with fuming nitric acid.

How do you prepare nitrobenzene?

Nitrobenzene : Laboratory preparation, Properties and Uses. Nitrobenzene : Laboratory preparation, Properties and Uses. It is prepared in lab by heating benzene with conc. HNO 3 and conc. H 2 SO 4 at 60 0 C. 50 ml of benzene is taken in a round bottomed flask.

What is nitrobenzene used to manufacture?

Nitrobenzene is used to manufacture aniline.   Acute (short-term) and chronic (long-term) inhalation, oral, and dermal exposure of humans to nitrobenzene result in effects on the blood (i.e., methemoglobinemia). At low nitrobenzene concentrations, symptoms include fatigue, weakness, dyspnea, headache, and dizziness.

What is the reaction between nitrobenzene and hydrogen?

Nitrobenzene when reduced by hydrogen in presence of nickel or platinum as a catalyst gives aniline. Nitrobenzene on reduction with Zn and aq. NH 4 Cl gives phenyl hydroxylamine.

What is the role of PIE bonding in nitrobenzene?

Its pie bonding further stabilizes the benzene ring, making it very unreactive. One of the main uses of nitrobenzene is to make aniline by reducing the nitro group to a primary amine, using a strong acid.