When silver nitrate solution is added to potassium iodide solution then the sol produced is:

• Correct answer
  A

  $\mathrm{AgI}/{\mathrm{I}}^{-}$
• B

  $\mathrm{AgI}/{\mathrm{Ag}}^{+}$
• C

  $\mathrm{KI}/{\mathrm{NO}}_3^{-}$
• D

  ${\mathrm{AgNO}}_3/{\mathrm{NO}}_3^{-}$

Hence, the correct answer is option: 'A'.