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Which of the following is required to liberate bromine from aqueous solution of HBr?
F > Cl > Br > I. So the more reactive chlorine will replace the less reactive bromine to give 2HCl and Br2. You can also use fluorine.
How do you purify HBr?
Using more concentrated sulfuric acid or allowing the reaction solution to exceed 75 °C further oxidizes HBr to bromine gas. The acid is further purified by filtering out the KHSO4 and by distilling off the water until the solution reaches an azeotrope (≈ 126 °C at 760 torr).
What is the compound HBr?
Hydrogen bromide
Hydrogen bromide/IUPAC ID
…bromine compounds of significance include hydrogen bromide (HBr), a colourless gas used as a reducing agent and a catalyst in organic reactions. A solution of the gas in water is called hydrobromic acid, a strong acid that resembles hydrochloric acid in its activity toward metals and their oxides and hydroxides.
What aqueous acid is formed from the bromide ion?
hydrobromic acid
The term “hydrobromic acid” refers to the aqueous solution of hydrogen bromide.
Which one will liberate Br2 from KBr solution?
Chlorine
Chlorine would react with KBr to produce Kcl solution and Br2 gas would be liberated out. Chlorine is more reactive than bromine. Or in other words, chlorine is more powerful oxidising agent than bromine.
Which one will not liberate Br2 from KBr?
I2 being weaker oxidising than Br2, will not liberate Br2 form KBr.
Is HBr soluble?
Water
Alcohol
Hydrogen bromide/Soluble in
When HBr dissolves in water the solution produced contains?
Hydrogen bromide is the inorganic compound with the formula HBr. It is a hydrogen halide consisting of hydrogen and bromine. A colorless gas, it dissolves in water, forming hydrobromic acid, which is saturated at 68.85\% HBr by weight at room temperature.
How can bromine be obtained from HBr?
Hydrogen bromide can be prepared by the action of red phosphorus and bromine. In this process, hydrogen bromide along with bromine in produced. The mixture of gasses [HBr + Br2] is passed through ‘U’ shaped tube packed with glass beads and moist red phosphorus which absorbs excess bromine.
What is the correct name for HBr in an aqueous solution?
Hydrobromic acid (HBr) aqueous solution is a powerful mineral acid that is an essential chemical tool in modern manufacturing.
How HBr is formed?
Hydrogen bromide (along with hydrobromic acid) is produced by combining hydrogen and bromine at temperatures between 200 and 400 °C. The reaction is typically catalyzed by platinum or asbestos.
Which one of the following does not liberate Br2 from KBr?