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Questions  >>  JEEMAIN and NEET  >>  NEET PAST PAPERS  >>  2006
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In which of the following pairs are both the ions coloured in aqueous solution- <br> [At. No. : Sc = 21, Ti = 22, Ni = 28, Cu = 29, Co = 27]


( A ) $Sc^{3+},Co^{2+}$
( B ) $Sc^{3+},Ti^{3+}$
( C ) $Ni^{2+},Ti^{3+}$
( D ) $Ni^{2+},Cu^{+}$

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