Question

Which of the following cation gives colourless solution?

• A. Copper in +2 state
• B. Manganese in +2 state
• C. Magnesium in +2 state
• D. Nickel in +2 state

Answer 1

The correct option is C

Magnesium in +2 state

$M{g}^{2+}$ gives a colourless solution.
$C{u}^{2+}$ - gives blue colour
$M{n}^{2+}$ - gives pale pink colour
$N{i}^{2+}$ - gives green colour