The alkyl group (CH 3CH 2CH 2–) is a propyl group, and the halogen is bromine (Br). The common name is therefore propyl bromide.

So, the name of the compound is bromoethane.

CH3−CH2−CH2−Br is bromoderivative of alkanes. In general, it is called alkyl bromide or bromoalkane. Its name is n-propyl bromide or 1-bromopropane.

Bromomethyl radical

what is the iupac name of CH3CH=CHC(Br)(CH3) The IUPAC name of the given compound is 4-bromo, 4-methyl, pent-2-ene.

A H3C−CH2 group is an ethyl residue.

What happens when Bromine attacks CH2=CH−CH2−C≡CH. Also Bromine is considered as enough of a reducing agent, when amount is sufficient it will reduce the reactant into product and results in colour formation.

Unsaturated hydrocarbons are much more volatile than the parent alkanes, including alkenes and alkynes. For example, they react easily with bromine to add a Br2 molecule across the double bond of C=C. The colour of Br2 easily disappears when combined with alkene or alkyne.

Breathing bromine gas could cause you to cough, have trouble breathing, get a headache, have irritation of your mucous membranes (inside your mouth, nose, etc.), be dizzy, or have watery eyes. Getting bromine liquid or gas on your skin could cause skin irritation and burns.

Cyclohexene reacts with bromine in the same way and under the same conditions as any other alkene. 1,2-dibromocyclohexane is formed. The reaction is an example of electrophilic addition.

Cyclohexane has no pi-unsaturation and is therefore not nucleophilic. It does not react with bromine unless energy in the form of light or heat is applied. In such a case a free-radical substitution reaction occurs. Cyclohexene is a typical alkene, and benzene and anisole are aromatic compounds.

Bromination: Any reaction or process in which bromine (and no other elements) are introduced into a molecule. Bromination of an alkene by electrophilic addition of Br2. Bromination of a benzene ring by electrophilic aromatic substitution. Bromination of a benzylic position by a free radical substitution reaction.

Alkanes are far less reactive than alkenes and will only react with bromine water in the presence of UV light. Under these conditions, alkanes undergo substitution reactions with halogens, and will slowly de-colourise bromine water.

Alkanes undergo a substitution reaction with halogens in the presence of light. For instance, in ultraviolet light , methane reacts with halogen molecules such as chlorine and bromine. This reaction is a substitution reaction because one of the hydrogen atoms from the methane is replaced by a bromine atom.

Bromine water is an orange solution of bromine. It becomes colourless when it is shaken with an alkene. Alkenes can decolourise bromine water, but alkanes cannot. This has the effect of ‘saturating’ the molecule, and will turn an alkene into an alkane.

In the presence of UV light, cyclopropane will undergo substitution reactions with chlorine or bromine just like a non-cyclic alkane. For example, with bromine, cyclopropane gives 1,3-dibromopropane.

Both of these will decolourize bromine water. A third possibility is cyclobutane. It will not decolourize bromine water.

However, cycloalkanes do not decolourise bromine water because it consists of single carbon- carbon bonds which means that the molecule is saturated and it will show no reaction when cycloalkanes reacts with bromine water. Bromine water is used to test the presence of alkene in the solution.

trans-2-bromocyclopentanol.

In tetrachloromethane, CCl4 (carbon tetrachloride), Br2 is far more soluble than in water. Bromine and CCl4 are both nonpolar, with the only forces present being dispersion forces. They are also very comparable and “like dissolves like” prevails.

An alkene will turn brown bromine water colourless as the bromine reacts with the carbon-carbon double bond. In fact this reaction will occur for unsaturated compounds containing carbon-carbon double bonds. An alkane undergoes no reaction with bromine water and therefore there is no colour change.

Bromine water, also called Bromide bromate solution or Bromine solution with the chemical formula Br2. The molecular weight of bromine water is 159.81 and the density is 1.307 g/mL. Bromine water is a yellow mixture solution with high oxidizing property, prepared by dissolving diatomic bromine (Br2) in water (H2O).

reddish brown

If bromine water is added to a solution of phenol in water, the bromine water is decolorized and a white precipitate is formed which smells of antiseptic. The precipitate is 2,4,6-tribromophenol. Notice the multiple substitution around the ring – into all the activated positions.

In addition, bromine water is commonly used to test for the presence of an alkene which contains a double covalent bond, reacting with the bromine water, changing its color from an intense yellow to a colorless solution. Bromine water is also commonly used to check for the presence of an aldehyde group in compounds.

In organic chemistry, the bromine test is a qualitative test for the presence of unsaturation (carbon-to-carbon double or triple bonds), phenols and anilines. The iodine value is a way to determine the presence of unsaturation quantitatively. The bromine test is a simple qualitative test.

Alkanes are saturated hydrocarbons, which does not decolourise the bromine water.

The answer is yes. Aldehydes will decolourise bromine water.