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Shweta Thakur posted an Question
October 24, 2020 • 23:13 pm 30 points
  • IIT JAM
  • Chemistry (CY)

Plz expalin the order the reactivity of hypohalous acids pf drobosatio marker private pl alkenes the order of reactivity of different hypohalous

ahons ndirct hybahs ADY inciuyDrivate sector has ime servicingirepen shy pf drobosatio marker private pl ALKENES The order of reactivity of different hypohalous acids, i.e., X,/H,O (HOX) is Cl/H,O (HOCI) > Br,/H,O (HOBr) > 1,/H,O (HOD Mechanism. The reaction actually occurs in two steps. In the first step, halogen adds slowiy uble bond to form cyclic halonium ion (I). In the second step, rapid nucleophilic attack.bhy H.0.o clic halonium ion () followed by loss of a proton gives the corresponding halohydrin. slow CH-CH-CH Br + Slow H0 CH,CH CH,+ BrBr -Br 8+ Fast Propylene aw w uw Jon CH-CH-CH,Br H CH-CH- OH Propylene bromo= H 4. Addition of sulphuric acid-Indirect hydration of alkenes. Cold conc. H,SQ, adds to alke- alkyl hydrogen sulphates. In case of unsvmmetrical o

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    Dinesh khalmaniya 1 Best Answer

    rectivity of hypohalous acids depend on acidity. more the acidity more is the reactivity. Acidity of Oxy acid (HOCl, HOBr, and HOI) depends on the polarity of the bond. In all three oxy acid, same atom O is attached to H in all acids. Here, Electronegativity of atom X (F, Cl or Br or I) attached to O decreases down a group, polarity of OH bond decreases, acid strength decreases. It means more the electronegativity of the halogen atom, more the tendency to pull electron and weaker the O-H bond and hence proton (H+) can easily remove. Example: HOF is strongest acid, HOI is weakest acid (order of acid strength is HOF > HOCl > HOBr > HOI) so the reactivity order is HOF > HOCl > HOBr > HOI)

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    Priyanshu kumar best-answer

    Acidity of hypohalous acid determines its reactivity order.... More is the acidity,more is the reactivity More the electronegativity, more is the tendency to pull electrons, weaker is the O-H bond, more easy it is to remove the H atom and hence more acidic the oxoacid. The increasing order of acid strength is: HOI

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    got this shweta?

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    yes sir

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