MCQ
$HN{O_3}$ in liquid hydrogen fluoride behaves
  • A
    As an acid
  • As a base
  • C
    Neither as a base nor as an acid
  • D
    As a base and as an acid

Answer

Correct option: B.
As a base
b
$HF$ undergoes self ionization.

$2 HF \rightleftharpoons\left[ H _2 F \right]^{+}+ F ^{-}$

$HNO _3$ act as base on dissolution in $HF$ as they accept proton from $HF$, reaction,

$HNO _3+ HF \rightleftharpoons H _2 NO _3^{+}+ F ^{-}$

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