How will you convert I ethyne into benzene?

When ethyne gas is passed through the red-hot iron tube, it leads to the formation of cyclic aromatic compound. When acetylene is heated in red-hot iron tube at 873 K, benzene is obtained. Ethyne could be directly converted into benzene in the presence of red-hot Cu or Fe.

How will you convert 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 do you convert ethyne to Ethanal?

Complete step by step answer: Ethyne on hydration in presence of 40\% H2SO4 and 1\% HgSO4 gives vinyl alcohol, which tautomerize to form acetaldehyde. Ethanal is practically incompatible with heavy oxidizers, acids , alcohols, ammonia, amines, phenols, ketones, halogens and anhydrides.

How do you convert alkyne to benzene?

An alkyne trimerisation reaction is a [2+2+2] cycloaddition reaction in which three alkyne units react to form a benzene ring. The reaction requires a metal catalyst. The process is of historic interest as well as being applicable to organic synthesis. Being a cycloaddition reaction, it has high atom economy.

How do you convert benzene to nitrobenzene?

To convert benzene to nitrobenzene, a nitro group is introduced into the benzene ring. It is then heated with a mixture of concentric nitric acid and concentrated sulphuric acid.

How is phenol converted to nitrobenzene?

Answer: Distillation of phenol with zinc dust produce benzene. Which then reflux with nitrating mixture (conc. HNO3 + conc.

How is aniline converted into nitrobenzene?

Hint: Aniline cannot be directly converted to nitrobenzene directly. It needs to be converted to a diazonium salt first which can then be treated with other chemical agents to form the nitrobenzene.

How is aniline prepared from nitrobenzene?

Aniline is prepared commercially by the catalytic hydrogenation of nitrobenzene or by the action of ammonia on chlorobenzene. The reduction of nitrobenzene can also be carried out with iron borings in aqueous acid. A primary aromatic amine, aniline is a weak base and forms salts with mineral acids.

How do you make ethyne from ethene?

Step to convert ethene to Ethyne

1. Ethane is characterized by the chemical formula .
2. It is made to react with in the presence of as catalyst.
3. The 2 atoms of Br attaches to the ethane and forms Dibromoethane.
4. It is then heated in the presence of alcoholic KOH.
5. This process yields ethyne as the end product.

How do you convert ethyne to acetaldehyde?

Ethyne is converted to acetaldehyde by hydration of ethyne. Acetylene easily combines with water in the presence of sulphuric acid & mercuric sulphate salts to form vinyl alcohol which tautomerizes to acetaldehyde. This reaction is called as Kucherov’s reaction.

How do you make nitrobenzene from benzene and ethyne?

Reaction of Benzene with conc HNO3 and conc H2SO4 at 333K gives nitrobenzene. Reaction of Ethyne in red hot Fe tube at 873K produces Benzene. Reaction of Benzene with conc HNO3 and conc H2SO4 at 333K gives nitrobenzene.

How do you convert acetylene to benzene?

Acetylene can be converted to benzene through Chain polymerization. That it Pass acetylene through red hot iron tube at a temperature of 873k. The molecules of acetylene will polymerized to give you benzene.

What happens when benzene is heated with a nitrating mixture?

Benzene is heated with nitrating mixture to form nitrobenzene.The reaction is known as nitration .It is aromatic electrophilic substitution reaction. Mechanism of nitration of benzene is simple and two stepped.

How will you convert ethyne to ethanol?

Ethyne is converted into ethanol as follows. Step-1:-Conversion of ethyne into acetaldehyde. Ethyne on hydration in presence of 40\% H₂SO₄ and 1\% HgSO₄ gives vinyl alcohol,which tautomerise to form acetaldehyde.