MCQ
Aqueous solution of an acid is characterised by the presence of
  • A
    ${H^ + }$ ions
  • B
    $H_2^ + $ ions
  • ${H_3}{O^ + }$ ions
  • D
    ${H_4}{O^ + }$ ions

Answer

Correct option: C.
${H_3}{O^ + }$ ions
(c) ${H_2}O + {H_2}O \rightleftharpoons  {H_3}{O^ + } + O{H^ - }$.

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