p-Block Elements · JEE Advanced previous year questions

2024 1 question

1. Q382024 · 26 May 2024 · Paper 2

   The species formed on fluorination of phosphorus pentachloride in a polar organic solvent are

   1. A.$[\mathrm{P}{\mathrm{F}}_4{]}^{+}[\mathrm{P}{\mathrm{F}}_6{]}^{-}$ and $[\mathrm{PC}{\mathrm{l}}_4{]}^{+}[\mathrm{P}{\mathrm{F}}_6{]}^{-}$
   2. B.$[\mathrm{PC}{\mathrm{l}}_4{]}^{+}[\mathrm{PC}{\mathrm{l}}_4{\mathrm{F}}_2{]}^{-}$ and $[\mathrm{PC}{\mathrm{l}}_4{]}^{+}[\mathrm{P}{\mathrm{F}}_6{]}^{-}$
   3. C.$\mathrm{P}{\mathrm{F}}_3$ and $\mathrm{PC}{\mathrm{l}}_3$
   4. D.$\mathrm{P}{\mathrm{F}}_5$ and $\mathrm{PC}{\mathrm{l}}_3$
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   Answer: A, B