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Yes, ethene and bromine can react without sunlight. The reaction occurs through an electrophilic addition mechanism, where bromine adds across the double bond of ethene to form 1,2-dibromoethane. This reaction can proceed in the dark, typically in a non-polar solvent, and is driven by the reactivity of the bromine molecule with the double bond of ethene.
What else can I help you with?
What information is needed to distinguish ethene from cyclohexane?
To distinguish ethene from cyclohexane, one can assess their physical properties and reactivity. Ethene is an unsaturated hydrocarbon with a double bond, making it reactive with bromine water, which will decolorize upon contact, whereas cyclohexane, a saturated hydrocarbon, will not react in this way. Additionally, ethene is a gas at room temperature, while cyclohexane is a liquid, providing another means of differentiation.
Which would discolour more Br2 1 mole of ethene or 1 mole of ethyle?
Br2 would discolour more when reacting with 1 mole of ethene compared to 1 mole of ethylbenzene. Ethene, being an alkene, undergoes electrophilic addition with bromine, resulting in the consumption of Br2 and a noticeable colour change. In contrast, ethylbenzene, which is an aromatic compound, does not readily react with Br2 under normal conditions, leading to less or no discolouration. Thus, ethene reacts more readily and causes a greater discolouration of Br2.
Does phenol react with bromine?
Yes, at room temperature bromine reacts with phenol and forms 2,4,6-tribromo phenol.
What simple chemical test will distinguish an alkane from others?
Use bromine water (Br2) or acidified permanganate (H+/MnO4-) With permanganate: add the permanganate to the alkane and no reaction will occur, add the permanganate to the alkene and you will form a diol the solution will also turn from purple to colourless. With bromine water: add the bromine water to the alkane (plus you need sunlight) and you get a substitution reaction, this is a slow reaction. Add the bromine water to the alkene and you get an immediate addition reaction (this one does not need sunlight). When bromine water reacts with an alkene it is decolourised, the reddish brown bromine water turns from brown to colourless. This is because alkenes are unsaturated and contain a carbon to carbon double bond. If you did the bromine water test in a dark place say a cupboard then the alkene would decolourise but the alkane wouldn't because it needs UV/sunlight in order to react. in practice the cupboard is not necessary as the speed of decolourisation is so much faster with the alkene.
How many magnesium atoms would be needed to react with one bromine molecule?
Two magnesium atoms would be needed to react with one bromine molecule. Magnesium has a +2 oxidation state, while bromine has a -1 oxidation state. This means that two magnesium atoms are needed to balance the charges when reacting with one bromine molecule.
How can you distinguish between ethene and ethyne by means of a chemical reaction?
One way to distinguish between ethene and ethyne is by performing a bromine water test. Ethene will decolorize bromine water, turning it from orange to colorless, while ethyne will not react with bromine water. This test takes advantage of the unsaturation in ethene that allows it to quickly react with bromine.
Which tets coudl be used to distinguish between ethene and methane?
Ethene can react with Bromine water - turns colourless
What test is used to show that ethene is unsaturated?
Bromine water test is used to show that ethene is unsaturated. In the presence of ethene, the red-brown color of bromine water disappears due to addition reaction with ethene, indicating its unsaturation.
Does ethene react with Bromine in the presence of UV light?
Yes, however it doesn't require it either to react. ethene+bromine water→1,2-dibromoethane Ethane reacts with bromine only in the presence of UV forming bromoethane and hydrogen bromide.
Can methane and bromine react without sunlight?
Methane and bromine cannot react without the presence of sunlight or U.V light because of lack of energy which is usually supplied by the U.V light to break the bromine molecules to free radicals for the reaction to occur.Hope my answer helped.ABUAD
Why does polyethene not react in the same way with bromine water as ethene?
Oh, dude, it's like this - polyethene is like the chill, laid-back version of ethene. It's already in a stable, happy relationship with itself, so it's not looking to get involved with bromine water drama. Ethene, on the other hand, is out there on the prowl, ready to react and cause a scene. So yeah, polyethene's just like, "No thanks, bromine water, I'm good."
What decolorises bromine in the absence of sunlight?
Organic compounds called Alkenes turns Bromine to colourless from orange-ish without sunlight as a catalyst. Alkanes however require sunlight to react.
What information is needed to distinguish ethene from cyclohexane?
To distinguish ethene from cyclohexane, one can assess their physical properties and reactivity. Ethene is an unsaturated hydrocarbon with a double bond, making it reactive with bromine water, which will decolorize upon contact, whereas cyclohexane, a saturated hydrocarbon, will not react in this way. Additionally, ethene is a gas at room temperature, while cyclohexane is a liquid, providing another means of differentiation.
How does the human body react to long periods without sunlight?
How does the human body react to long periods without sunlight?
What does not react with bromine - propene ethanol chloroform acetylene?
Ethanol does not react with bromine.
What is the equation of methane with bromine in the absence of sunlight?
In the absence of sunlight, methane (CH4) will react with bromine (Br2) to form bromomethane (CH3Br) and hydrogen bromide (HBr) as products. The balanced chemical equation for this reaction is CH4 + Br2 -> CH3Br + HBr.
Is bromine react able with air?
Bromine does not react with air because it is not possible. It is a non reactant element.
