answersLogoWhite

0

The Nucleophilic substitution of Halo alkanes

User Avatar

Wiki User

12y ago

What else can I help you with?

Continue Learning about Natural Sciences

Chemical equation for the reaction of ethyne with bromine in carbon tetrachloride?

The question is not very specific, so there is more than just one answer, but I'm assuming you are referring to a radical bromination of an alkane (ethane) versus an electrophilic bromination of an alkene (ethene).Br2 in the presence of a radical initiator (such as light or heat) will add to ethane to form 2-bromoethane as the major product in a radical mechanism. This goes through an initiation step (forming 2 bromine radicals), followed by propagation to the alkane (forming a secondary ethyl radical), followed by a termination step. The termination step leading to the product is one where another bromine radical joins with the ethyl radical.In the absence of light or heat, bromine cannot react with an alkane, but it can react as an electrophile with an alkene. In this type of reaction (electrophilic addition to an alkene), the ∏-bond (double bond) on ethene attacks a bromine atom (from Br2) and kicks out a bromide (Br-). The bromine that was just added forms two bonds (one on each carbon of the double bond), giving a three-membered C-Br-C ring called a bromonium ion (since the bromine atom now has a positive charge). The bromide that left before can now attack the backside of the bromonium ion, opening the 3-membered ring, and adding anti to form a dibromoalkane (1,2-dibromoethane in this example). This reaction is stereospecific because in the major product the bromine atoms will always add anti (to the opposite side) on the alkene.


What is the action of Cl2 on ethyne?

When chlorine gas (Cl2) reacts with ethyne (C2H2), it undergoes an addition reaction, resulting in the formation of 1,2-dichloroethane (C2H2Cl2). The triple bond in ethyne is broken as chlorine atoms add across the carbon-carbon bond. This reaction typically occurs in the presence of light or heat, facilitating the addition process. Overall, the reaction transforms the alkyne into a more saturated compound.


What more dense oxygen or ethyne?

Oxygen is much more dense than ethyne. This is why a test tube full of ethyne would be held upside down so the ethyne doesnt escape into the air.


What is the number of hydrogen atoms in a molecule ethyne?

The chemical formula of ethyne (acerylene) is C2H2 - two hydrogen atoms.


What is the chemical name for acetylene?

Ethyne

Related Questions

Does ethyne react with bromine?

Yes, ethyne (acetylene) can react with bromine to form 1,2-dibromoethane. This is an addition reaction where the bromine atoms add across the carbon-carbon triple bond in ethyne.


How can you distinguish between ethene and ethyne by means of a chemical reaction?

One way to distinguish between ethene and ethyne is by performing a bromine water test. Ethene will decolorize bromine water, turning it from orange to colorless, while ethyne will not react with bromine water. This test takes advantage of the unsaturation in ethene that allows it to quickly react with bromine.


What is the reaction of acetylene with bromine?

CH (triple bond) CH + Br2 -> BrC (triple bond) CBr


What molecules are nonpolar bromine pentafluoride tetrachloroethene chlorine trifluoride phosphine ethyne?

ethyne (or acetylene) is non polar


What is the balanced equation for the complete combustion of Ethyne?

The balanced equation for the complete combustion of ethyne (C2H2) is: 2C2H2 + 5O2 -> 4CO2 + 2H2O


What is 2c2h2 5o2-4co2 2h2o?

It is the balanced equation for the combustion of acetylene (or ethyne).


Chemical equation for the reaction of ethyne with bromine in carbon tetrachloride?

The question is not very specific, so there is more than just one answer, but I'm assuming you are referring to a radical bromination of an alkane (ethane) versus an electrophilic bromination of an alkene (ethene).Br2 in the presence of a radical initiator (such as light or heat) will add to ethane to form 2-bromoethane as the major product in a radical mechanism. This goes through an initiation step (forming 2 bromine radicals), followed by propagation to the alkane (forming a secondary ethyl radical), followed by a termination step. The termination step leading to the product is one where another bromine radical joins with the ethyl radical.In the absence of light or heat, bromine cannot react with an alkane, but it can react as an electrophile with an alkene. In this type of reaction (electrophilic addition to an alkene), the ∏-bond (double bond) on ethene attacks a bromine atom (from Br2) and kicks out a bromide (Br-). The bromine that was just added forms two bonds (one on each carbon of the double bond), giving a three-membered C-Br-C ring called a bromonium ion (since the bromine atom now has a positive charge). The bromide that left before can now attack the backside of the bromonium ion, opening the 3-membered ring, and adding anti to form a dibromoalkane (1,2-dibromoethane in this example). This reaction is stereospecific because in the major product the bromine atoms will always add anti (to the opposite side) on the alkene.


How is benzene prepared from ethyne?

Benzene can be prepared from ethyne through a process called electrophilic aromatic substitution. In this process, ethyne reacts with a strong acid catalyst such as concentrated sulfuric acid to form benzene. The high temperature required for this reaction causes the triple bond in ethyne to break and the resulting carbons bond to form a benzene ring.


How do you convert chloroform into ethyne?

Chloroform will convert to ethylene by heating the former with silver powder. Chloroform is represented by the chemical formula CHCl3. Ethyne also known as acetylene is represented by the chemical formula C2H2. The silver powder acts as reducing agent in the given conversion, it reduces carbon and itself gets oxidized. The reaction for conversion is as follows: 2CHCl3 + 6Ag --> C2H2 + 6AgCl. In the given reaction, Ag is silver and AgCl is silver chloride.


How do you prepare 1- hexyne from ethyne?

To prepare 1-hexyne from ethyne, you would first need to convert ethyne to 1-bromohexane through a series of reactions. Ethyne would undergo bromination to form 1,2-dibromoethane, followed by a substitution reaction with sodium cyanide to form 1-cyano-1,2-dibromoethane. Finally, hydrolysis of the nitrile group would yield 1-hexyne. This multi-step process allows for the conversion of ethyne to 1-hexyne through intermediate compounds.


What do you observe when ethyne is passed through ammoniacal cuprous chloride solution?

When ethyne is passed through ammoniacal cuprous chloride solution, the blue color of the cuprous chloride solution fades as the ethyne reduces cuprous chloride to copper, forming reddish-brown copper. This reaction is a test for unsaturation in organic compounds.


What is the colour ethyne after combustion?

By combustion ethyne is transformed in carbon dioxide and water.