What gas can Decolourise bromine water?

Solution: Butyne, Ethene and Hexyne, all can decolourise bromine water.

What are the hydrocarbon Decolourises bromine solution?

Hint: When a hydrocarbon decolourises Bromine water, they are likely to be the unsaturated ones i.e. alkenes and alkynes because the double or triple bonds break and those valences of carbon are fulfilled by Bromine.

Which compound Decolourises bromine water with the formation of white precipitate?

Phenols. Phenols undergo substitution reactions in the presence of bromine water to give a brominated compound. During the process, bromine water is decolourized and gives white precipitate.

Which compound will Decolourise bromine water the fastest?

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

Which of the following gas does not Decolorize bromine water?

Generally, saturated hydrocarbon does not decolourise bromine water. Alkanes are saturated hydrocarbons, which does not decolourise the bromine water.

What will rapidly Decolourise bromine water?

Bromine water is an orange solution of bromine. It becomes colourless when it is shaken with an alkene. Alkenes can decolourise bromine water, but alkanes cannot.

Why do unsaturated hydrocarbons Decolourise bromine water?

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.

Which among the following Cannot Decolourise bromine water?

Alkanes are saturated hydrocarbons and thus doesnot decolourise bromine water.

Which of the following Decolourises bromine water and does not give white precipitate with agno3?

Solution : (i) Ethene `(C_(2)H_(4))` is an unsaturated compound that decolourises bromine water. (ii) Ethene does not give any precipitate while reacting with ammoniacal silver nitrate. Step by step solution by experts to help you in doubt clearance & scoring excellent marks in exams.

How do you Decolorize bromine water?

Bromine water can not decolourize them. Alkanes are hydrocarbons that are saturated and therefore do not decolorize bromine water. An orange solution of bromine is bromine water. When it is shaken with an Alkene, it becomes colourless.

Which of the following does not Decolourise bromine solution?

Ans is option (c) Ethane.

What happens when bromine water is added to ethene gas?

Answer : Ethene gas decolourises the brown colour of bromine water.

Why does ethane Decolourises bromine water?

Ethene decolourises bromine water because ethene is an alkene. And all alkenes and alkynes are unsaturated compounds which decolourise bromine water. On the other hand ethane being an alkane is a saturated compound which does not decolourise bromine water.

Which will Decolourise baeyer’s reagent as well as bromine water?

Propyne decolurises bromine water and Baeyer’s reagent.

Which of the following Decolourises bromine water and does not give white precipitate with Ammonical Agno?

Do ketones react with bromine?

Synthesis of α-Halo Ketones 2-Propanone reacts easily with chlorine, bromine, and iodine.

How do you dilute bromine water?

Add 0.5 ml of bromine to 100 ml of water. Or crush an ampoule under 200 ml of water and decant the liquid into a bottle.

Does cyclopentane Decolourise bromine water?

Bromine water can not decolourize them. Alkanes are hydrocarbons that are saturated and therefore do not decolorize bromine water.

Does benzene Decolourise bromine water?

Benzene does not react with any electrophilic addition reactions hence it does undergo bromine water test, as they have delocalised pi bonds. Therefore, it does not decolourise the bromine water.

Which of the following does not Decolourise Br₂ Ccl₄ *?

Unsaturated hydrocarbons with double or triple bonds decolourize the red color of bromine in carbontetrachloride but methane does not decolorize it.

Can You decolourise bromine water?

Bromine water is an orange solution of bromine. It becomes colourless when it is shaken with an alkene. Alkenes can decolourise bromine water, but alkanes cannot. The slideshow shows this process. Click to see full answer. In this manner, which does not Decolourise bromine water?

What is the use of bromine water in chemistry?

bromine water is commonly used to test for the presence of an alkene which contains a double covalent bond which reacts with the bromine water which changes its color from an intense yellow to a colorless solution. What are the uses of bromine water in the lab?

Does ketone decolourise bromine water?

Ketones as such do not decolourise bromine water but their enolic forms do so. The percentage of the enol content depends on the presence of alpha hydrogens and the nature of solvent. In this regard, does cyclohexane Decolourise bromine water?

Why does cyclohexene decolourise when it reacts with 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.

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