Question

pair of colour ions are

​

Answer 1

$\large\red{\underline{{\boxed{\textbf{Your\: Answer}}}}}$

Hence, in above ions, Ni2+ and Ti3+ ions are coloured ions in aqueous solution due to presence of unpaired electrons in d -sub shell. Hence, in above ions, Ni2+ and Ti3+ ions are coloured ions in aqueous solution due to presence of unpaired electrons in d -sub shell.

Answer 2

Answer:

Hence, in above ions, Ni2+ and Ti3+ ions are coloured ions in aqueous solution due to presence of unpaired electrons in d -sub shell. Hence, in above ions, Ni2+ and Ti3+ ions are coloured ions in aqueous solution due to presence of unpaired electrons in d -sub shell