MCQ
Which solution among following give blue colour, if Cu foil is added in solution :
  • A
    $KNO _3$
  • $AgNO _3$
  • C
    $Zn \left( NO _3\right)_2$
  • D
    $ZnSO _4$

Answer

Correct option: B.
$AgNO _3$
B

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