1Sulfuric acid could cause the competing reaction, elimination, to occur giving impurities of alkene with your desired reaction products
the reaction would also be explosive.
Q: why is sulphuric acid not used during reaction of alcohols using KI??
umm....generally we use it like:
R-OH + NaBr + H2SO4 ----> R-Br + NaHSO4 + H2O!!
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7 Answers
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1no..i dont think that is the answer..I think it is beacuse in the case of Iodine..sulphuric acid CAN act as AN OXIDISING AGENT..so eventually Iodine escapes as I2 !
1yups js genius is right....sulphuric acid acts as oxidising agent.....and oxidises strong reducing agent HI to I2 (which is therefore producd using KI and H3PO3)
also reaction could b explosive
and what madhumita has mentioned about the products being elimination products...is actually the reason why sec and tert bromides and iodides cant b prepared by using sulfuric acid
39Wow yaar...everyone has become self sufficient in organic...:P
