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Oxidation and Reduction

Which one of ...

Question

Which one of these ions absorbs energy from visible spectrum :- (1) [Cu(NH3)4]^+ (2) [Cu(NH3)4]^+2 (3) [Zn(H2O)6]^+2 (4) [Co(H2O)6]^+3

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Q. Select incorrect statement(s) for

{[C u {(C N)}_{4}]}_{4}^{3 -}, {[C d {(C N)}_{4}]}_{4}^{2 -}

{[C u {(N H_{3})}_{4}]}_{4}^{2 +}

[C u (N H_{3})_{4}]^{2 +}

is coloured while

[C u (C N)_{4}]^{3 -}

is colourless. Reason:

[C u (N H_{3})_{4}]^{2 +}

d s p^{2}

Q. The complex ion

[C u (N H_{3})_{4}]^{2 +}

Q. Magnetic moment of

[C u (N H_{3})_{4}]^{2 +}

Q. Determine EAN of the metal ion in

[C u (N H_{3})_{4}]^{2 +}

.

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