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What happens when bromine reacts with potassium iodide?
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Why does bromine water fade when testing for saturation?
Bromine water fades when testing for saturation because the bromine is decolorized by the unsaturated organic compounds present in the solution. This reaction occurs because the unsaturated compounds react with and break the bromine-bromine bond, causing the bromine solution to lose its color.
What happens when bromine water is added to ethanol?
When bromine water is added to ethanol, the bromine will react with the ethanol forming 2-bromoethanol. The reaction occurs via nucleophilic substitution where the bromine reacts with the -OH group of ethanol. This reaction can be used as a test to distinguish between primary, secondary, and tertiary alcohols.
Does pentene decolourise bromine solution?
Pentene is an unstaturdated hydrocarbon (One that does not have many possible side branches) It reacts readily with halogens to form new substances. In this case, bromine reacts with pentene in an addition reaction, this changes pentene into 1,1-dibromopentane. Thus, removing bromine from the solution, hence the distinct orange color is removed.
What happens when 1-butene reacts with bromine?
When 1-butene reacts with bromine, an addition reaction occurs where the bromine molecule adds across the double bond of the 1-butene molecule, resulting in the formation of 1,2-dibromobutane.
Why does when sodiumbromide reacts with chlorine the solution turns yellow?
The yellow color seen when sodium bromide reacts with chlorine is due to the formation of bromine, a reddish-brown liquid, which is a byproduct of the reaction. Bromine is responsible for the yellow color of the solution.
What happens when bromine water reacts with alkenes?
Bromine water reacts with alkenes through an electrophilic addition reaction where the pi bond of the alkene breaks, and bromine atoms are added to the carbon atoms. This reaction results in the decolorization of the bromine water, changing it from orange to colorless.
Does Bromine react with air?
Yes, bromine reacts with air to form bromine vapors. Bromine reacts with oxygen present in the air to form bromine oxides.
What is the colour of the bromine with the cyclohexene?
Bromine is reddish-brown in color. When it reacts with cyclohexene, the solution initially turns from red to colorless as the bromine adds across the double bond, forming a dibromo compound.
What changes in color occur when bromine or KMnO4 reacts with an alkane?
Bromine reacts with an alkane to produce a colorless solution, due to the formation of a colorless alkyl halide. On the other hand, potassium permanganate (KMnO4) reacts with an alkane to form a brown precipitate of manganese dioxide.
What happens when bromine reacts with sodium?
When bromine reacts with sodium, it forms sodium bromide. The reaction is a displacement reaction where sodium displaces bromine from its compound to form sodium bromide. The reaction is highly exothermic and produces a bright orange flame.
How can you tell whether a compound reacts with bromine?
You can test if a compound reacts with bromine by adding bromine water to the compound. If the compound reacts with bromine, the characteristic reddish-brown color of the bromine water will fade as it reacts with the compound. This reaction is often used to test for the presence of unsaturated bonds in organic compounds.
