MCQ
Which of the given method can't produce $Cl_2$
  • A
    Electrolysis of brine
  • B
    Deacon's process
  • Heating $MnO_2$ with conc. $HCl$
  • D
    Heating $KCl$ with conc. $H_2SO_4$

Answer

Correct option: C.
Heating $MnO_2$ with conc. $HCl$
c
Correct order of bond dissociation enthalpy of halogens is $Cl _{2} > Br _{2} > F _{2} > I _{2}$.

Due to inter electronic repulsions $F - F$ bond becomes weak and easily broken.

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