Transition Metals (Colour and Formula Test)

What colour is Cr³⁺ in aqueous solutions i.e [Cr(H_²O)₆]³⁺

• Blue

• Green

• Yellow

• Pink

What colour are aqueous dicromate ions, Cr₂O₇ ^2-

• Blue

• Green

• Orange

• Pink

What colour are aqueous chromate ions, CrO₄ ^2-

• Blue

• Green

• Yellow

• Pink

What colour are Mn²⁺ ions in aqueous solutions?

• Blue

• Green

• Yellow

• Pink

Fe²⁺ ions are which colour in aqueous solutions?

• Blue

• Green

• Yellow

• Pink

Fe³⁺ ions are which colour in aqueous solutions

• Blue

• Green

• Orange

  (or Yellow)

• Pink

Co²⁺ ions are which colour in aqueous solutions?

• Blue

• Green

• Yellow

• Pink

Ni²⁺ in aqueous solutions are which colour?

• Blue

• Green

• Yellow

• Pink

Aqueous Cu²⁺ ions are which colour in solution

• Blue

• Green

• Yellow

• Pink

V²⁺ ions form aqueous ions that are which colour?

• Blue

• Green

• Yellow

• Pink

• Violet