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Coordination Compounds

Short Answer Type

121.

On the basis of the following observations made with aqueous solutions, assign primary and secondary valencies to metals in the following compounds:

Formula	Motes of AgCl precipitated with excess AgNO₃
(i) PdCl_2.4NH₃	2
(ii) NiCl_2.6H₂O	2
(iii) PtCl₄.2HCl	0
(iv) CoCl₃.4NH₃	1
(v) PtCl₂.2NH₃	0

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Long Answer Type

122. Briefly write the rules for writing the formulas of mononuclear coordination compounds.

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123.

Briefly explain the rules for writing down the names of the coordination compounds.

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Short Answer Type

124.
What are ligands? Give examples.

The atoms or molecules or ions which donate pair of electrons to the central metal atom and thus forms coordinate bond with the central metal atom. Common ligands are –NH₃, CO, CN^–, Cl^–, Br^–, I^–, H₂O etc.

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125.

What are ambident ligands? What are their importance?

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126. Briefly classify the type of ligands on the basis of their ligating ability.

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127. What do you mean by coordination number? Explain with example.

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128. What is a coordination polyhedron?

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129. What do you mean be denticity and chelation?

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Long Answer Type

130. Briefly explain the type of chelation.

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Short Answer Type

124. What are ligands? Give examples.

Long Answer Type

124.
What are ligands? Give examples.