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Which of the following is NOT true for metal carbonyls?
(a)The oxidation state of the metal in the carbonyls can be zero.
(b) is formed by back-bonding from metal to carbon.
(c)Metal carbonyls have single bond between metal and carbon
(d) overlap is observed in metal carbonyls.

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Important Questions on Coordination Compounds
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In the complex , the species acting as Lewis acids and Lewis bases are respectively __________.

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Which of the following factors tends to increase the stability of the metal ion complexes?

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The Irving William order of stability of complexes of divalent metal ions with the same ligands is _____.

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A reagent used for identifying nickel ion is ______.

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Which of the following is widely used as an electrolyte for silver plating?

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The hardness of water is estimated by _____ method.

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Triphenyl phosphine is _____.

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When potassium hexachloroplatinate (II) is dissolved in water, the solution ______.
