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Shweta Thakur posted an Question
November 07, 2020 • 02:10 am 30 points
  • IIT JAM
  • Chemistry (CY)

In encircled region plz explain negative charge on zn cl2 om the oxygen atom of alcohols. the presence of positive cha

Role of anhydrous ZnCl, in GOves' process. Anhydrous ZnCl, being a Lewis acid accepts an electron from the oxygen atom of alcohols. The presence of positive charge on the oxygen atom weakens the band which ultimately breaks to form a carbocation as shown in the SI mechanism discussed above SNR R+[HOZnCl, ZnCl1tc On R-0-H +ZnCl, RLO-ZnCl, RU ft H Ifthe structure of R is such that it can undergo rearrangement to form a more stable carbocation, then the major product will be the alkyl halide derived from the rearranged carbocation as discussed below f, however, the concentration of zinc chloride is low, the reaction occurs by Sa2 mechanism. ZnCl,+HCI H+ZnCl +(ZnCĘR_OH + H R-OH ZnCl-CI +*R LOH2 Sy2 R-CI+ZnCl, tH,O

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  • Suman Kumar

    Same as BF3 + F- = BF4 - ZnCl2 + Cl- = ZnCl3- This negative charge is formal charge.

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    Priyanshu kumar Best Answer

    ZnCl2 is a Lewis acid because it can accept an electron pair from a Lewis base.  So Zncl2 + cl- - zncl3-

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    Dinesh khalmaniya 1 best-answer

    ZnCl2 is Lewis acid so it can react with HCl to give ZnCl3-

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