Which compound will Decolourise bromine water the fastest?

Answer: Alkene decolorizes bromine water so it is often used as a test for unsaturated hydrocarbon.

Which compound will react with bromine water?

alkenes
The most common compounds that react well with bromine water are phenols, alkenes, enols, the acetyl group, aniline, and glucose.

What causes discoloration of bromine water?

An alkene decolourise bromine water because the bromine reacts with the carbon-carbon double bonds. The carbon-carbon bond is broken and bromine gets attached to the alkene thus forming alkane.

Which of the following compounds will not Decolourise brown yellow bromine water?

Benzene does not reacts with Br2/H2O so no decolourised bromine water.

Why do unsaturated compounds Decolourise bromine water?

Answer: Unsaturated means double or triple bonded compounds of carbon. So, in the presence of an attacking reagent like bromine, the double or triple bond breaks making the compound unstable. If you will make it to react with bromine then firstly the bond will break and then bromine will get attach to each carbon end.

Is bromine water a compound?

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 used to identify the functional group present in the organic compound by halogenation mechanism.

What kind of reaction occurs when an alkene Decolourises bromine in tetrachloromethane?

The reaction with bromine happens at room temperature. If you have a gaseous alkene like ethene, you can bubble it through either pure liquid bromine or a solution of bromine in an organic solvent like tetrachloromethane. The reddish-brown bromine is decolourised as it reacts with the alkene.

What is the Colour of bromine?

reddish brown
Physical and chemical properties Free bromine is a reddish brown liquid with an appreciable vapour pressure at room temperature. Bromine vapour is amber in colour.

Which of the following does not Decolourize bromine solution?

Ethane does not decolourise bromine solution because it is a saturated compound.

Which would Decolorize a red solution of bromine?

Bromine is a dark red-brown liquid, but alkenes and dibromoalkanes are colorless. Thus, a dilute solution of bromine in an inert colorless solvent, such as dichloromethane, is rapidly decolorized when it is added to an alkene.

Do all unsaturated compounds Decolourise bromine water?

Explanation: It’s not just Cyclohexene, but ALL Alkene molecules that decolourise when they react with Bromine water. Alkenes contain a C=C double bond and thus we call them “unsaturated hydrocarbons”. Bromine (Br2) breaks this C=C double bond and attaches itself to the Alkene molecule, forming an Alkane.

What compounds Decolourise bromine?

Ethene, butyne, and hexyne can decolourize bromine water. The bromine loses its unique red-earthy colored tone to give a dry fluid. The decoloration of bromine is frequently utilized as a test for $C – C$ twofold and triple bond.

Why does cyclohexene decolourise when it reacts with bromine water?

Good question! It’s not just Cyclohexene, but ALL Alkene molecules that decolourise when they react with Bromine water. Alkenes contain a C=C double bond and thus we call them “unsaturated hydrocarbons”. Bromine (Br2) breaks this C=C double bond and attaches itself to the Alkene molecule, forming an Alkane.

Which of the following can decolourize bromine water?

Ethene, butyne, and hexyne can decolourize bromine water. The bromine loses its original red-brown color to give a colorless liquid. The decoloration of bromine is often used as a test for C-C double and triple bond. Answer verified by Toppr

What is the use of Decoloration of bromine in covalent compounds?

The decoloration of bromine is often used as a test for C-C double and triple bond. Was this answer helpful?

What happens when bromine is mixed with tetrachloromethane?

Colour of the bromine water solution is decolourized as it reacts with ethene. But, liquid alkenes like cyclohexene react with bromine water solution in the presence of tetrachloromethane. 3. Phenols Phenols undergo substitution reactions in the presence of bromine water to give a brominated compound.