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Bromine water is a dilute solution of bromine that is normally orange-brown in colour, but becomes colourless when shaken with an alkene. Alkenes can decolourise bromine water, while alkanes cannot.

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11y ago
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13y ago

bromine when added to propene will turn colourless from its red/brown colour

The chemical equation will read :

CH2=CH-CH3 + Br2 ===> BrCH2-CHBr-CH3

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11y ago

CHClCl-CHClCl

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Q: What is the observation between bromine and propene?
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What chemical tests can be used to distinguish between polymer and propene?

Propene is an alkene, whereas propane is an alkane. Thus, propene is an unsaturated molecule, having a carbon-carbon double bond. If you add bromine water, an aqueous solution of bromine, to the test tubes, you can tell which is propene, the alkene. The bromine reacts with and saturates the double bonds in alkenes, and so decolourises. The bromine does not decolourise when added to an alkane as it does not react. So, in conclusion:Add bromine water (brown) to the test tubesIf the bromine water stays brown, the test tube contains propaneIf the bromine water goes colourless, the test tube contained propene.


Laboratory observation of reaction between silver nitrate and sodium bromide?

AgBr precipitates and in light decomposes to bromine and silver metal.


What is the difference between bromine and liquid bromine?

Liquid bromine is the Real Bromine, while Bromine water is a mixture of Bromine and Water


What is the difference between bromine water and liquid bromine?

Liquid bromine is the Real Bromine, while Bromine water is a mixture of Bromine and Water


The formula for propane and propene?

Propane is C3H8.Propene is C3H6.


How man carbons does propene have?

Propene has 3 carbon atoms.


What is the bond between bromine and bromine?

Yes, a Bromine atom can bond to another similar Bromine atom, to make a Bromine molecule: Br2


What is the major product from the treatment of propene with HCL?

(propene) (2-chloropropane)


What is the empirical formula for propene (C3H6)?

C3H6 is an empirical formula for propene.


What is the propene formula?

The formula for propene is c3h6 the formula for propyne is c3h4.


What is the balanced chemical equation between neon and bromine?

Any reaction occur between neon and bromine.


How is propene obtained from crude oil?

Propene is obtained from crude oil by cracking.