" Which of the following metal ions forms a colourless solution in an aqueous medium? "

Which one of the following metal ions is colourless?

Which of the following forms a colourless solution in aqueous medium?

Which of the following metal ions is colored in aqueous solution ?

Which one of the following forms a colourless solution in aqueous medium ? (Atomic number : Sc =21, Ti = 22, V = 23 , and Cr = 24 )

Which one of the following forms a colourless solution in aqueous medium ? (Atomic number : Sc =21, Ti = 22, V = 23 , and Cr = 24 )

Which of the following ion is colourless in aqueous solution ?