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  • ions are blue in colour and when mixed with a yellow coloured oxoanion of transition metal X gives a green coloured compound Y. What

Cu^{2+} ions are blue in colour and when mixed with a yellow coloured oxoanion of transition metal X gives a green coloured compound Y. What is X and Y?

Option: 1

X= MnO_{^{4}}^{-} and Y = CuMnO_{4}

 


Option: 2

X= MnO_{4}^{-} and Y= Cu(MNO_{4})_{2}


Option: 3

X= Cr_{2}O_{_{7}}^{2-} and Y= Cu\; Cr_{2}O_{7}


Option: 4

X= Cr_{2}O_{7}^{2-} and Y= Cu (Cr_{2}O_{7})_{2}


Answers (1)

CuCr_{2}O_{7} solution is green because Cu^{2+}ions are blue and Cr_{2}O_{7}^{2-} ions are yellow in aqueous medium. Both blue and yellow colours mix up to give a green colour.

 

Posted by

Ramraj Saini

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