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when Br2 was shaken with 0.1M KI and then C6H14 was added. was there a reaction?...

when Br2 was shaken with 0.1M KI and then C6H14 was added. was there a reaction? expalin

When I2 shaken with 0.1M KBr and then C6H14 was added, was there a reaction? explain

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Answer #1

Part 1)

When Bromine is shaken with KI solution. KBr is formed and Iodine is precipitated as a black solid. To the solution, if hexane(C6H14) is added, Iodine will dissolve in the hexane and a transparent golden yellow color appears in the bottom of the organic layer due to the dissolved Iodine and the precipitate disappears

Br2 + KI   KBr + I2

Part 2)

Iodine will not react with KBr, since Iodine is less reactive than Bromine. When hexane is added, the Iodine will dissolve in the hexane layer to form a transparent golden yellow color at the bottom of the organic layer due to the dissolved Iodine

I2 + KBr   No reaction

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