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It changes from brown to colorless.
Br2 has a brown color before it reacts with the alkene, forming a dibromoalkane as the alkene opens up its double bond and bromine joins up with that bond. The Br-Br bond is broken, hence removing the brown color.
In reality, the appearance of bromine water depends on its concentration.
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∙ 11y ago
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∙ 12y agoalkenes will discolour bromine wateras the alkene reacts with it
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∙ 14y agoViolet colour becomes disappear or changes to light pink.
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∙ 11y agoIt passes from red to colourless. Br2 is red while HBr i colourless
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∙ 12y agoWow, great question... Shame I don't know the answer
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∙ 11y agobromine gets decolourized (disappearance of colour)
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∙ 9y agoreddish/orange color of bromine disappears
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∙ 13y agoFirstly, there is a discharge of reddish brown colour due to bromine which then turns colourless.
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∙ 11y agoyou got banged
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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 is the color of gaseous bromine?
Kind of Red/Brown, or rust color, but vibrant.
Does hexane and bromine water and sodium hydroxide solution react?
If this is supposed to be an alkene test, then no, hexane will not react with bromine water to take away its color as it is an alkane and therefore contains no double bonds. But bromine water will react with sodium hydroxide; bromine water contains either HCl or H2SO4, both of which will of course react with sodium hydroxide. In addition, I believe (from some experiments like this that I've done recently) that sodium hydroxide will actually react with the free bromine in the bromine water, as evidenced by the change in color from the orange-ish color of bromine water to a pale yellow.
What color is bromine water and NaCl mixed together?
Bromine water and NaCl mixed together appears colourless. The only condition which there is a colour is when the bromine water is old (bromine water is basically rum), but under normal conditions, the mixture ought to be colourless.
What color does bromine water change when you mix it with unsaturated fat?
There is no colour change
What changes in color occur when bromine or KMnO4 reacts with an alkane?
Purple to colourless
What changes in color occur when bromine or KMnO4 reacts with an alkene?
The purple KMnO4 is decolourise
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.
Why does when sodiumbromide reacts with chlorine the solution turns yellow?
Sodium bromide reacts with chlorine to produce sodium chloride and bromine. 2NaBr + Cl2 --> 2NaCl + Br2. Bromine in color, though may appear yellowish in low concentrations.
What color is an Alkyne in a flame test?
Blue
Is ironoxide a gas?
No, its when iron reacts with O2 and changes its color to blueish green
What are the reagents used distingush saturated and unsaturated organic compounds?
Basically there are many tests which is usually practiced to distinguish saturated Organic compounds from the unsaturated ones. But two of them are the most common: 1. Bromine water test. 2. Bayer's test. Basically Bromine water is red in color, so when an unsaturated compound (Alkene or Alkyne) is treated with it. The Bromine water get decolourized, on the other side the color is not changed when treated with saturated compound. In the Bayer's test KMnO4 solution is used, the unsaturated compound vanish its pink color while the saturated compounds do not.
What is the state color and luster of bromine?
Bromine is a red liquid.
What is color bromine?
Reddish Brown
What is the color of metal bromine?
Bromine is not a metal, it is a non-metal. Its colour is Reddish brown
What color is bromine water?
Red colour
What color is bromine gas?
Red-brown
